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Period 3 element

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1925:. The periodic table is laid out in rows to illustrate recurring (periodic) trends in the chemical behavior of the elements as their atomic number increases: a new row is begun when chemical behavior begins to repeat, meaning that elements with similar behavior fall into the same vertical columns. The third period contains eight elements: sodium, magnesium, aluminium, silicon, phosphorus, sulfur, chlorine and argon. The first two, sodium and magnesium, are members of the 4754: 25: 4766: 3070:. Argon is mostly used as an inert shielding gas in welding and other high-temperature industrial processes where ordinarily non-reactive substances become reactive: for example, an argon atmosphere is used in graphite electric furnaces to prevent the graphite from burning. Argon gas also has uses in incandescent and fluorescent lighting, and other types of gas discharge tubes. Argon makes a distinctive 2933:), has been known since ancient times; however, around 1630, chlorine gas was obtained by the Belgian chemist and physician Jan Baptist van Helmont. The synthesis and characterization of elemental chlorine occurred in 1774 by Swedish chemist Carl Wilhelm Scheele, who called it "dephlogisticated muriatic acid air", as he thought he synthesized the oxide obtained from the 2937:, because acids were thought at the time to necessarily contain oxygen. A number of chemists, including Claude Berthollet, suggested that Scheele's "dephlogisticated muriatic acid air" must be a combination of oxygen and the yet undiscovered element, and Scheele named the supposed new element within this oxide as 3191:
that form all cell membranes. Demonstrating the link between phosphorus and life, elemental phosphorus was historically first isolated from human urine, and bone ash was an important early phosphate source. Phosphate minerals are fossils. Low phosphate levels are an important limit to growth in some
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The free element (metal) is not found naturally on Earth, as it is highly reactive (though once produced, it is coated in a thin layer of oxide , which partly masks this reactivity). The free metal burns with a characteristic brilliant white light, making it a useful ingredient in flares. The metal
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Sulfur is an essential element for all life, and is widely used in biochemical processes. In metabolic reactions, sulfur compounds serve as both fuels and respiratory (oxygen-replacing) materials for simple organisms. Sulfur in organic form is present in the vitamins
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are not known to be used by any form of life. In keeping with its pervasiveness, it is well tolerated by plants and animals. Because of their prevalence, potential beneficial (or otherwise) biological roles of aluminium compounds are of continuing interest.
2853:, where it sometimes occurs in nearly pure form, but this method has been obsolete since the late 20th century. Today, almost all elemental sulfur is produced as a byproduct of removing sulfur-containing contaminants from 2480:, the metalloid directly below it in the table. Controversy about silicon's character dates from its discovery: silicon was first prepared and characterized in pure form in 1824, and given the name silicium (from 2370: 2601:
Elemental silicon also has a large impact on the modern world economy. Although most free silicon is used in the steel refining, aluminum-casting, and fine chemical industries (often to make
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as a whole. Magnesium is the fourth most common element in the Earth as a whole (behind iron, oxygen and silicon), making up 13% of the planet's mass and a large fraction of the planet's
2688:", meaning glow after illumination, derives from this property of phosphorus, the glow of phosphorus originates from oxidation of the white (but not red) phosphorus and should be called 2605:), the relatively small portion of very highly purified silicon that is used in semiconductor electronics (< 10%) is perhaps even more critical. Because of wide use of silicon in 2405:. It makes up about 8% by weight of the Earth's solid surface. Aluminium metal is too reactive chemically to occur natively. Instead, it is found combined in over 270 different 2538:
Most silicon is used commercially without being separated, and indeed often with little processing of compounds from nature. These include direct industrial building use of
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Helmboldt, Otto; Keith Hudson, L.; Misra, Chanakya; Wefers, Karl; Heck, Wolfgang; Stark, Hans; Danner, Max; Rösch, Norbert (2007). "Aluminum Compounds, Inorganic".
2226:. Many salts of sodium are highly soluble in water and are thus present in significant quantities in the Earth's bodies of water, most abundantly in the oceans as 2941:. The suggestion that this newly discovered gas was a simple element was made in 1809 by Joseph Louis Gay-Lussac and Louis-Jacques. This was confirmed in 1810 by 4559: 2842:, and the bright yellow powder was hypothesized by alchemists to contain some of the properties of gold, which they sought to synthesize from it. In 1777, 1779: 4569: 3285: 1789: 3732: 4619: 1839: 4803: 4716: 4594: 1813: 3153: 2822:. Sulfur fumes were used as fumigants, and sulfur-containing medicinal mixtures were used as balms and antiparasitics. Sulfur is referenced in the 1896: 4599: 4574: 4020: 2305:
stars by sequential additions of three helium nuclei to carbon (which in turn is made from three helium nuclei). Due to the magnesium ion's high
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and disinfectant uses, as well as being an essential reagent in the chemical industry. As a common disinfectant, chlorine compounds are used in
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The free metal, elemental sodium, does not occur in nature but must be prepared from sodium compounds. Elemental sodium was first isolated by
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word-ending to suggest a metal. However, its final name, suggested in 1831, reflects the more chemically similar elements carbon and boron.
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need silicon in order to have structure. It is much more important to the metabolism of plants, particularly many grasses, and
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Silicon is an essential element in biology, although only tiny traces of it appear to be required by animals, though various
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Herbert Diskowski, Thomas Hofmann "Phosphorus" in Ullmann's Encyclopedia of Industrial Chemistry 2005, Wiley-VCH, Weinheim.
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classified by some chemists as a post-transition metal. It is not soluble in water under normal circumstances. Aluminium is
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and structural materials. The most useful compounds of aluminium, at least on a weight basis, are the oxides and sulfates.
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form abrasives and high-strength ceramics. Silicon is the basis of the ubiquitous synthetic silicon-based polymers called
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generally applies to period 3 in the same way as to period 2 elements, because the 3d subshell is normally non-acting.
1683: 1634: 2834:, with this name still used in several nonscientific terms. Sulfur was considered important enough to receive its own 2660:
The first form of elemental phosphorus to be produced (white phosphorus, in 1669) emits a faint glow upon exposure to
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in the universe by mass, but very rarely occurs as the pure free element in nature. It is most widely distributed in
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Greenwood, N. N.; & Earnshaw, A. (1997). Chemistry of the Elements (2nd Edn.), Oxford:Butterworth-Heinemann.
3047:(eight electrons) in the outer atomic shell makes argon stable and resistant to bonding with other elements. Its 1882: 1833: 1217: 1210: 1238: 4769: 4651: 4006: 2806:
minerals. Elemental sulfur crystals are commonly sought after by mineral collectors for their brightly colored
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The vast majority of phosphorus compounds are consumed as fertilizers. Other applications include the role of
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aquatic systems. Today, the most important commercial use of phosphorus-based chemicals is the production of
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produced by living organisms imparts the characteristic odor to rotting eggs and other biological processes.
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Magnesium ions are sour to the taste, and in low concentrations help to impart a natural tartness to fresh
3235:, found in outer skin, hair, and feathers, and the element contributes to their pungent odor when burned. 4673: 1088: 4235: 4230: 1964:, more specifically filling its 3s and 3p subshells. There is a 3d subshell, but—in compliance with the 4508: 1930: 1926: 1719: 1310: 4441: 2700: 1627: 2810:
shapes. Being abundant in native form, sulfur was known in ancient times, mentioned for its uses in
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helped convince the scientific community that sulfur was a basic element, rather than a compound.
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thus require magnesium ions to function. Magnesium is also the metallic ion at the center of
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Elemental chlorine is extremely dangerous and poisonous for all lifeforms, and is used as a
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bonds are largely responsible for the mechanical strength and insolubility of the protein
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is by far the most common argon isotope, being the preferred argon isotope produced by
2657:—but due to its high reactivity, phosphorus is never found as a free element on Earth. 2646: 1726: 1602: 1579: 1574: 1300: 1280: 1273: 5683: 4503: 4373: 3984: 3947: 3903: 3831: 3788: 3761: 3634: 2957: 2934: 2919: 2915: 2843: 2835: 2689: 2524: 2398: 1946: 1703: 1691: 1543: 1290: 1266: 708: 1186: 5747: 5452: 5281: 5110: 4948: 4921: 4884: 4879: 4874: 4738: 4656: 4432: 4297: 4255: 4215: 4210: 4205: 4200: 4190: 4185: 4137: 4132: 4127: 3976: 3939: 3887: 3363: 3358: 3353: 3243: 3138: 2969: 2942: 2882: 2831: 2650: 2559: 2402: 2378: 2298: 2290: 2257: 1994: 1973: 1969: 1965: 1950: 1914: 1869: 1616: 1450: 1406: 1373: 1366: 1359: 1352: 1338: 1331: 1258: 1251: 1244: 1061: 3943: 4869: 4864: 4859: 4854: 4849: 4844: 4839: 4609: 4470: 4122: 4117: 4112: 4107: 4102: 4097: 4092: 3706: 3348: 3343: 3338: 3333: 3328: 3323: 3318: 3239: 3091: 3083: 3071: 2977: 2923: 2685: 2591: 2555: 2516: 2433: 2227: 1828: 1658: 1237: 1230: 1223: 1216: 1209: 1202: 1195: 1169: 2609:, the basis of most computers, a great deal of modern technology depends on it. 4812: 4418: 4413: 4383: 4378: 4363: 4029: 3722:"Abundance and form of the most abundant elements in Earth's continental crust" 3298: 3102: 3036: 3010: 2811: 2772: 2654: 2481: 2476:, the nonmetal directly above it in the periodic table, but more reactive than 2242: 1954: 1934: 1922: 1598: 1594: 1538: 1531: 1526: 1401: 1381: 1001: 123: 2869:, a primary industrial chemical. Other well-known uses for the element are in 2641:, phosphorus as a mineral is almost always present in its maximally oxidized ( 6088: 5906: 3891: 3798: 3106: 2961: 2866: 2819: 2692:. It is also the lightest element to easily produce stable exceptions to the 2382: 2341: 2207: 878: 120: 1259: 5960: 5789: 5494: 4894: 4827: 4733: 4398: 4393: 4147: 4082: 3373: 3308: 3188: 3165: 3048: 3021: 2712: 2602: 2508: 2466: 2318: 2253: 2249: 1562: 1550: 1438: 1272: 1175: 920: 787: 561: 3988: 3086:
for all animals and some plants. In animals, sodium ions are used against
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solid when at room temperature. Chemically, sulfur can react as either an
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is Na. It is an abundant element that exists in numerous minerals such as
6014: 5978: 5969: 5879: 5861: 5852: 4889: 4513: 4388: 4142: 3368: 3213: 3209: 3161: 3126: 2874: 2854: 2642: 2374: 2206:) is a soft, silvery-white, highly reactive metal and is a member of the 1567: 1555: 1265: 962: 934: 927: 857: 843: 836: 6023: 5951: 5924: 5897: 5557: 5539: 5512: 5343: 5334: 5073: 4287: 3520: 3254: 3253:
Argon has no biological role. Like any gas besides oxygen, argon is an
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in Earth's crust. The great oxidizing power of chlorine led it to its
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Phosphorus is essential for life. As phosphate, it is a component of
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Many sodium compounds are useful, such as sodium hydroxide (lye) for
2061: 2040: 1933:. All of the period 3 elements occur in nature and have at least one 1508: 1475: 1309: 1289: 1279: 976: 955: 948: 829: 815: 808: 801: 638: 568: 547: 510: 468: 454: 426: 408: 364: 315: 271: 227: 218: 158: 3105:, where they play a major role in manipulating important biological 24: 5987: 5888: 5771: 5753: 5728: 5719: 5692: 5665: 5629: 5620: 5602: 5530: 5521: 5415: 5287: 5253: 5163: 5154: 5145: 5136: 5091: 5010: 4992: 4927: 4335: 4292: 3566: 3247: 3220: 3216:. Organically bonded sulfur is a component of all proteins, as the 3205: 3134: 3025: 3017: 2894: 2792: 2677: 2595: 2571: 2520: 2310: 2294: 2219: 2215: 2145: 1495: 1467: 941: 864: 773: 759: 743: 736: 715: 694: 666: 659: 645: 589: 582: 503: 401: 378: 308: 301: 294: 287: 255: 195: 181: 133: 6069: 6064: 6059: 6054: 5942: 5933: 5915: 5870: 5798: 5780: 5710: 5656: 5638: 5611: 5584: 5566: 5548: 5458: 5388: 5361: 5325: 5307: 5271: 5262: 5244: 5226: 5125: 5064: 4954: 4909: 4781: 4162: 3998: 3666: 3661: 3656: 3651: 3497: 3388: 3232: 3141:), and in a number of situations where stabilization of abnormal 2907: 2803: 2799: 2768: 2764: 2672: 2575: 2512: 2453: 2421: 2414: 2406: 2394: 2211: 2177: 2156: 2135: 2114: 2093: 2082: 2072: 2051: 2030: 1503: 1299: 1170: 906: 899: 885: 850: 794: 780: 729: 687: 673: 652: 631: 617: 603: 533: 482: 461: 433: 419: 392: 385: 371: 357: 278: 234: 151: 3967:
Nielsen, Forrest H. (1984). "Ultratrace Elements in Nutrition".
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Magnesium is the eleventh most abundant element by mass in the
3052: 2788: 2783:, including carbon, which leads to its negative charge in most 2728: 2661: 2583: 2567: 2563: 2532: 2473: 2390: 2223: 2194: 2124: 2019: 822: 766: 680: 624: 554: 540: 517: 489: 475: 343: 336: 329: 248: 211: 188: 174: 142: 3196:, to replace the phosphorus that plants remove from the soil. 3145:
excitation and blood vessel spasm is required (e.g., to treat
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in water, it is the third most abundant element dissolved in
2301:. It is relatively abundant because it is easily built up in 2166: 1953:, this period corresponds to the buildup of electrons in the 1430: 750: 524: 262: 167: 5701: 5674: 5217: 5181: 5019: 3264: 2954:
second most abundant halogen and 21st most abundant element
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Chlorine is a component of many other compounds. It is the
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of the periodic table, while the others are members of the
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In nature, sulfur can be found as the pure element and as
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and has common oxidation number +2. It is the eighth most
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The Top 10 of Everything 2006: The Ultimate Book of Lists
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The most common compound of chlorine, sodium chloride (
3133:. Magnesium compounds are used medicinally as common 2325:. Commercially, the chief use for the metal is as an 1374: 2432:. Structural components made from aluminium and its 1367: 1360: 1346: 1353: 1339: 49:. Unsourced material may be challenged and removed. 3847: 2787:, but it reduces several strong oxidants, such as 3760:(3rd ed.). Prentice Hall. pp. 305–306. 2861:. The element's commercial uses are primarily in 2649:. Elemental phosphorus exists in two major forms— 6086: 3811: 3755: 3729:Some Fundamentals of Mineralogy and Geochemistry 1332: 3875:Abundances of the Elements in the Earth's Crust 2922:of all the elements; thus chlorine is a strong 2531:in the Earth's crust (about 28% by mass) after 2523:. Over 90% of the Earth's crust is composed of 2472:. It is less reactive than its chemical analog 1972:. This makes all eight elements analogs of the 3936:Ullmann's Encyclopedia of Industrial Chemistry 2241:is also a component of many minerals, such as 121: 4797: 4014: 3279: 2945:, who named it chlorine, from the Greek word 2910:. The element forms diatomic molecules under 2664:– hence its name given from Greek mythology, 2440:industry and are important in other areas of 1890: 3005:. Argon is the third most common gas in the 2838:. It was needed to make the best quality of 2420:Aluminium is remarkable for the metal's low 3830:4th ed., HarperCollins College Publishers, 3826:Huheey JE, Keiter EA & Keiter RL 1993, 3152:Despite its prevalence in the environment, 2665: 4804: 4790: 4021: 4007: 3286: 3272: 1897: 1883: 3828:Principles of Structure & Reactivity, 3756:Housecroft, C. E.; Sharpe, A. G. (2008). 2849:Elemental sulfur was once extracted from 109:Learn how and when to remove this message 3713: 3001:) is the third element in group 18, the 2972:, chlorine-containing molecules such as 2914:, called dichlorine. It has the highest 2590:. More modern silicon compounds such as 5904: 3966: 3927: 3896: 3643:shows natural occurrence of the element 3101:; its ions are essential to all living 3057:International Temperature Scale of 1990 3024:in the Earth's crust. In the universe, 3009:, at 0.93%, making it more common than 1923:periodic table of the chemical elements 6087: 5958: 5787: 5492: 3814:"The chemical composition of seawater" 3521: 3062:Argon is produced industrially by the 2763:. Elemental sulfur is a bright yellow 6012: 5976: 5967: 5877: 5859: 5850: 4785: 4002: 3960: 3820: 3719: 3475: 3450: 3035:The name "argon" is derived from the 2333:-magnesium alloys, sometimes called " 6021: 5949: 5922: 5895: 5555: 5537: 5510: 5341: 5332: 3567: 3260: 2566:, and combined with silica sand and 47:adding citations to reliable sources 18: 6030: 6003: 5994: 5841: 5823: 5814: 5805: 5591: 5501: 5474: 5422: 5368: 5350: 5314: 5294: 5233: 5170: 5071: 5053: 5042: 4961: 4765: 3981:10.1146/annurev.nu.04.070184.000321 3780: 3498: 3129:, and is thus a common additive to 3077: 2949:(chlōros), meaning "green-yellow". 2373:) is a silvery white member of the 1940: 13: 5985: 5886: 5769: 5751: 5726: 5717: 5690: 5663: 5618: 5600: 5528: 5519: 5413: 5285: 5251: 5161: 5143: 5134: 5114: 5089: 4811: 4028: 3544: 3427: 3092:build up charges on cell membranes 2574:. Silicates are also in whiteware 14: 6106: 5940: 5931: 5913: 5868: 5778: 5708: 5681: 5654: 5636: 5627: 5609: 5582: 5564: 5546: 5456: 5386: 5359: 5323: 5269: 5260: 5242: 5224: 5152: 5123: 5062: 5008: 4990: 4952: 4925: 3590: 3055:is a defining fixed point in the 2321:of magnesium salts obtained from 5832: 5796: 5760: 5645: 5573: 5483: 5465: 5395: 5377: 5305: 5206: 5197: 5188: 5033: 4936: 4764: 4753: 4752: 3852:. Science is Fun. Archived from 3850:"Chemical of the Week: Aluminum" 1976:in the same exact sequence. The 23: 5735: 5440: 5431: 5098: 5080: 4999: 4981: 3913: 3738:from the original on 2011-09-27 2670:meaning "light-bearer" (Latin: 2387:the third most abundant element 34:needs additional citations for 16:Third row of the periodic table 5699: 5672: 5215: 5179: 5017: 4972: 4083:1 (Hydrogen and alkali metals) 3880: 3867: 3841: 3805: 3774: 3749: 3692: 3013:. Nearly all of this argon is 2424:and for its ability to resist 1999: 1: 5404: 4625:Thermal expansion coefficient 4321:Lists of metalloids by source 3944:10.1002/14356007.a01_527.pub2 3685: 2612: 1486:dividing metals and nonmetals 3051:temperature of 83.8058  2550:. Silica is used in ceramic 2529:second most abundant element 2347: 2263: 7: 4364:Platinum-group metals (PGM) 4067:By periodic table structure 2888: 2495:Silicon is the eighth most 2293:and the ninth in the known 1983: 1154:By periodic table structure 10: 6111: 5303: 5132: 5051: 4970: 4934: 4836: 4509:Goldschmidt classification 3969:Annual Review of Nutrition 3877:, Georgia State University 3616: 3612: 3470: 3267: 3020:derived from the decay of 2987: 2892: 2757:cyclic octatomic molecules 2726: 2701:organophosphorus compounds 2616: 2451: 2447: 2351: 2317:is now mainly obtained by 2267: 2192: 1844:expansion coefficient 1720:Goldschmidt classification 416: 284: 224: 164: 139: 6046: 5746: 5451: 5280: 5109: 5028: 4947: 4920: 4913: 4908: 4903: 4898: 4893: 4888: 4883: 4878: 4873: 4868: 4863: 4858: 4853: 4848: 4843: 4838: 4831: 4826: 4819: 4747: 4709: 4642: 4522: 4479: 4440: 4431: 4356: 4334: 4311: 4278: 4268: 4246: 4176: 4088:2 (Alkaline earth metals) 4073: 4066: 4057: 4036: 3812:Anthoni, J Floor (2006). 3409: 3399: 2906:) is the second-lightest 2722: 2666: 2428:due to the phenomenon of 2188: 2165: 2144: 2123: 2102: 2081: 2060: 2039: 2018: 2011: 2006: 2003: 1998: 1993: 1628:List of chemical elements 6095:Periods (periodic table) 3892:10.1002/14356007.a19_505 3680: 2983: 2976:have been implicated in 1968:—it is not filled until 1521:By other characteristics 1131:Systematic element names 4727:systematic element name 4699:in East Asian languages 4049:Extended periodic table 3848:Shakhashiri, Bassam Z. 3064:fractional distillation 3030:stellar nucleosynthesis 2964:to keep them clean and 2918:and the one of highest 2759:with chemical formula S 1744:Data pages for elements 1423:metallic classification 1189:(alkaline earth metals) 4570:Electron configuration 4560:Electrical resistivity 4499:Electron configuration 4303:Post-transition metals 2785:organosulfur compounds 2645:) state, as inorganic 2485: 2013:Electron configuration 1974:period 2 elements 1780:Electrical resistivity 1672:Properties of elements 1055:Periodic table history 4404:Transuranium elements 3921:"Magnesium in health" 3781:Ash, Russell (2005). 3720:Railsback, L. Bruce. 3710:from Scienceaid.co.uk 2684:. Although the term " 2676:), referring to the " 2582:, and in traditional 2554:. Silicate goes into 2527:, making silicon the 1917:in the third row (or 1532:Platinum-group metals 1081:Discovery of elements 4620:Thermal conductivity 4595:Heat of vaporization 4037:Periodic table forms 3072:blue–green gas laser 2755:, sulfur atoms form 2515:as various forms of 2283:alkaline earth metal 1814:of vaporization 1679:Relative atomic mass 1652:by isotope stability 1647:by atomic properties 1010:Periodic table forms 43:improve this article 4652:Element discoveries 4409:Superheavy elements 4369:Rare-earth elements 3758:Inorganic Chemistry 2974:chlorofluorocarbons 2912:standard conditions 2775:. It oxidizes most 2607:integrated circuits 2488:, flints), with an 2399:most abundant metal 1990: 1989:Elements by number 1580:Rare-earth elements 1575:Main-group elements 3705:2012-07-29 at the 3137:, antacids (e.g., 3007:Earth's atmosphere 2210:; its only stable 1988: 1947:quantum mechanical 58:"Period 3 element" 6082: 6081: 6075: 6074: 6041: 6040: 4779: 4778: 4638: 4637: 4600:Ionization energy 4575:Electronegativity 4565:Electron affinity 4504:Electronegativity 4494:Crystal structure 4489:Aqueous chemistry 4466:Nuclear stability 4461:Atomic properties 4427: 4426: 4374:Refractory metals 4352: 4351: 4298:Transition metals 4264: 4263: 3767:978-0-13-175553-6 3678: 3677: 3672: 3671: 3415: 3405: 3261:Table of elements 3084:essential element 3039:neuter adjective 2935:hydrochloric acid 2920:electronegativity 2916:electron affinity 2844:Antoine Lavoisier 2836:alchemical symbol 2753:normal conditions 2747:nonmetal, one of 2690:chemiluminescence 2525:silicate minerals 2436:are vital to the 2379:chemical elements 2186: 2185: 1915:chemical elements 1907: 1906: 1819:Ionization energy 1795:Electronegativity 1704:Electronegativity 1684:Crystal structure 1544:Refractory metals 1393:(s, p, d, f, ...) 984: 983: 710:Mercury (element) 119: 118: 111: 93: 6102: 6051: 6050: 6037: 6035: 6028: 6026: 6019: 6017: 6010: 6008: 6001: 5999: 5992: 5990: 5983: 5981: 5974: 5972: 5965: 5963: 5956: 5954: 5947: 5945: 5938: 5936: 5929: 5927: 5920: 5918: 5911: 5909: 5902: 5900: 5893: 5891: 5884: 5882: 5875: 5873: 5866: 5864: 5857: 5855: 5848: 5846: 5839: 5837: 5830: 5828: 5821: 5819: 5812: 5810: 5803: 5801: 5794: 5792: 5785: 5783: 5776: 5774: 5767: 5765: 5758: 5756: 5742: 5740: 5733: 5731: 5724: 5722: 5715: 5713: 5706: 5704: 5697: 5695: 5688: 5686: 5679: 5677: 5670: 5668: 5661: 5659: 5652: 5650: 5643: 5641: 5634: 5632: 5625: 5623: 5616: 5614: 5607: 5605: 5598: 5596: 5589: 5587: 5580: 5578: 5571: 5569: 5562: 5560: 5553: 5551: 5544: 5542: 5535: 5533: 5526: 5524: 5517: 5515: 5508: 5506: 5499: 5497: 5490: 5488: 5481: 5479: 5472: 5470: 5463: 5461: 5447: 5445: 5438: 5436: 5429: 5427: 5420: 5418: 5411: 5409: 5402: 5400: 5393: 5391: 5384: 5382: 5375: 5373: 5366: 5364: 5357: 5355: 5348: 5346: 5339: 5337: 5330: 5328: 5321: 5319: 5312: 5310: 5301: 5299: 5292: 5290: 5276: 5274: 5267: 5265: 5258: 5256: 5249: 5247: 5240: 5238: 5231: 5229: 5222: 5220: 5213: 5211: 5204: 5202: 5195: 5193: 5186: 5184: 5177: 5175: 5168: 5166: 5159: 5157: 5150: 5148: 5141: 5139: 5130: 5128: 5121: 5119: 5105: 5103: 5096: 5094: 5087: 5085: 5078: 5076: 5069: 5067: 5060: 5058: 5049: 5047: 5040: 5038: 5024: 5022: 5015: 5013: 5006: 5004: 4997: 4995: 4988: 4986: 4979: 4977: 4968: 4966: 4959: 4957: 4943: 4941: 4932: 4930: 4822: 4806: 4799: 4792: 4783: 4782: 4768: 4767: 4756: 4755: 4739:Dmitri Mendeleev 4667:1869 predictions 4657:Dmitri Mendeleev 4438: 4437: 4276: 4275: 4256:Aufbau principle 4168:18 (Noble gases) 4071: 4070: 4064: 4063: 4059:Sets of elements 4023: 4016: 4009: 4000: 3999: 3993: 3992: 3964: 3958: 3957: 3931: 3925: 3924: 3917: 3911: 3900: 3894: 3884: 3878: 3871: 3865: 3864: 3862: 3861: 3845: 3839: 3824: 3818: 3817: 3809: 3803: 3802: 3797:. Archived from 3778: 3772: 3771: 3753: 3747: 3746: 3744: 3743: 3737: 3726: 3717: 3711: 3709: 3700:Period 3 Element 3696: 3648: 3647: 3644: 3637: 3631: 3629: 3623: 3608: 3606: 3605: 3604: 3599: 3596: 3593: 3585: 3583: 3582: 3581: 3576: 3573: 3570: 3562: 3560: 3559: 3558: 3553: 3550: 3547: 3539: 3537: 3536: 3535: 3530: 3527: 3524: 3523:Phos­phorus 3516: 3514: 3513: 3512: 3507: 3504: 3501: 3493: 3491: 3490: 3489: 3484: 3481: 3478: 3468: 3466: 3465: 3464: 3459: 3456: 3453: 3445: 3443: 3442: 3441: 3436: 3433: 3430: 3410: 3400: 3288: 3281: 3274: 3265: 3244:chemical warfare 3139:milk of magnesia 3078:Biological roles 2970:upper atmosphere 2943:Sir Humphry Davy 2883:Hydrogen sulfide 2669: 2668: 2651:white phosphorus 2413:of aluminium is 2371:American English 2287:abundant element 2258:sodium hydroxide 2001: 1991: 1987: 1966:Aufbau principle 1961: 1951:atomic structure 1941:Atomic structure 1911:period 3 element 1899: 1892: 1885: 1870:Chemistry Portal 1504:nonmetal halogen 1407:Aufbau principle 1383: 1376: 1369: 1362: 1355: 1348: 1341: 1334: 1315: 1305: 1295: 1285: 1275: 1268: 1261: 1254: 1247: 1240: 1233: 1226: 1219: 1212: 1205: 1198: 1191: 1180: 1172: 1144:Sets of elements 1072:1869 predictions 1042: 1036: 1032: 989: 988: 979: 972: 965: 958: 951: 944: 937: 930: 923: 916: 909: 902: 895: 888: 881: 874: 867: 860: 853: 846: 839: 832: 825: 818: 811: 804: 797: 790: 783: 776: 769: 762: 753: 746: 739: 732: 725: 718: 711: 704: 697: 690: 683: 676: 669: 662: 655: 648: 641: 634: 627: 620: 613: 606: 599: 592: 585: 578: 571: 564: 557: 550: 543: 536: 527: 520: 513: 506: 499: 492: 485: 478: 471: 464: 457: 450: 443: 436: 429: 422: 411: 404: 395: 388: 381: 374: 367: 360: 353: 346: 339: 332: 325: 318: 311: 304: 297: 290: 281: 274: 265: 258: 251: 244: 237: 230: 221: 214: 205: 198: 191: 184: 177: 170: 161: 154: 145: 136: 130: 129: 122:Period 3 in the 114: 107: 103: 100: 94: 92: 51: 27: 19: 6110: 6109: 6105: 6104: 6103: 6101: 6100: 6099: 6085: 6084: 6083: 6078: 6077: 6076: 6042: 6033: 6031: 6024: 6022: 6015: 6013: 6006: 6004: 5997: 5995: 5988: 5986: 5979: 5977: 5970: 5968: 5961: 5959: 5952: 5950: 5943: 5941: 5934: 5932: 5925: 5923: 5916: 5914: 5907: 5905: 5898: 5896: 5889: 5887: 5880: 5878: 5871: 5869: 5862: 5860: 5853: 5851: 5844: 5842: 5835: 5833: 5826: 5824: 5817: 5815: 5808: 5806: 5799: 5797: 5790: 5788: 5781: 5779: 5772: 5770: 5763: 5761: 5754: 5752: 5738: 5736: 5729: 5727: 5720: 5718: 5711: 5709: 5702: 5700: 5693: 5691: 5684: 5682: 5675: 5673: 5666: 5664: 5657: 5655: 5648: 5646: 5639: 5637: 5630: 5628: 5621: 5619: 5612: 5610: 5603: 5601: 5594: 5592: 5585: 5583: 5576: 5574: 5567: 5565: 5558: 5556: 5549: 5547: 5540: 5538: 5531: 5529: 5522: 5520: 5513: 5511: 5504: 5502: 5495: 5493: 5486: 5484: 5477: 5475: 5468: 5466: 5459: 5457: 5443: 5441: 5434: 5432: 5425: 5423: 5416: 5414: 5407: 5405: 5398: 5396: 5389: 5387: 5380: 5378: 5371: 5369: 5362: 5360: 5353: 5351: 5344: 5342: 5335: 5333: 5326: 5324: 5317: 5315: 5308: 5306: 5297: 5295: 5288: 5286: 5272: 5270: 5263: 5261: 5254: 5252: 5245: 5243: 5236: 5234: 5227: 5225: 5218: 5216: 5209: 5207: 5200: 5198: 5191: 5189: 5182: 5180: 5173: 5171: 5164: 5162: 5155: 5153: 5146: 5144: 5137: 5135: 5126: 5124: 5117: 5115: 5101: 5099: 5092: 5090: 5083: 5081: 5074: 5072: 5065: 5063: 5056: 5054: 5045: 5043: 5036: 5034: 5020: 5018: 5011: 5009: 5002: 5000: 4993: 4991: 4984: 4982: 4975: 4973: 4964: 4962: 4955: 4953: 4939: 4937: 4928: 4926: 4815: 4810: 4780: 4775: 4743: 4705: 4634: 4610:Oxidation state 4518: 4475: 4423: 4419:Minor actinides 4414:Major actinides 4379:Precious metals 4348: 4330: 4307: 4260: 4242: 4172: 4158:16 (Chalcogens) 4153:15 (Pnictogens) 4053: 4032: 4027: 3997: 3996: 3965: 3961: 3954: 3932: 3928: 3919: 3918: 3914: 3901: 3897: 3885: 3881: 3872: 3868: 3859: 3857: 3846: 3842: 3825: 3821: 3810: 3806: 3795: 3779: 3775: 3768: 3754: 3750: 3741: 3739: 3735: 3724: 3718: 3714: 3707:Wayback Machine 3698: 3697: 3693: 3688: 3683: 3674: 3673: 3645: 3639: 3633: 3627: 3625: 3619: 3602: 3600: 3597: 3594: 3591: 3588: 3579: 3577: 3574: 3571: 3568: 3565: 3556: 3554: 3551: 3548: 3545: 3542: 3533: 3531: 3528: 3525: 3522: 3519: 3510: 3508: 3505: 3502: 3499: 3496: 3487: 3485: 3482: 3479: 3477:Alumin­ium 3476: 3473: 3462: 3460: 3457: 3454: 3452:Magne­sium 3451: 3448: 3439: 3437: 3434: 3431: 3428: 3425: 3301: 3292: 3263: 3240:pulmonary agent 3187:, and also the 3154:aluminium salts 3109:compounds like 3080: 2992: 2986: 2978:ozone depletion 2924:oxidizing agent 2897: 2891: 2840:black gunpowder 2762: 2731: 2725: 2686:phosphorescence 2647:phosphate rocks 2621: 2615: 2592:silicon carbide 2588:soda–lime glass 2556:Portland cement 2517:silicon dioxide 2456: 2450: 2356: 2350: 2272: 2266: 2252:in 1807 by the 2228:sodium chloride 2197: 2191: 1986: 1956: 1949:description of 1943: 1903: 1854: 1853: 1829:Oxidation state 1745: 1737: 1736: 1674: 1664: 1663: 1630: 1620: 1609: 1608: 1539:Precious metals 1522: 1514: 1513: 1456:post-transition 1425: 1414: 1413: 1402:Atomic orbitals 1155: 1147: 1136: 1135: 1057: 1047: 1046: 1040: 1034: 1030: 1011: 987: 986: 985: 977: 970: 963: 956: 949: 942: 935: 928: 921: 914: 907: 900: 893: 886: 879: 872: 865: 858: 851: 844: 837: 830: 823: 816: 809: 802: 795: 788: 781: 774: 767: 760: 751: 744: 737: 730: 723: 716: 709: 702: 695: 688: 681: 674: 667: 660: 653: 646: 639: 632: 625: 618: 611: 604: 597: 590: 583: 576: 569: 562: 555: 548: 541: 534: 525: 518: 511: 504: 497: 490: 483: 476: 469: 462: 455: 448: 441: 434: 427: 420: 409: 402: 393: 386: 379: 372: 365: 358: 351: 344: 337: 330: 323: 316: 309: 302: 295: 288: 279: 272: 263: 256: 249: 242: 235: 228: 219: 212: 203: 196: 189: 182: 175: 168: 159: 152: 143: 134: 126: 115: 104: 98: 95: 52: 50: 40: 28: 17: 12: 11: 5: 6108: 6098: 6097: 6080: 6079: 6073: 6072: 6067: 6062: 6057: 6049: 6047: 6044: 6043: 6039: 6038: 6029: 6020: 6011: 6002: 5993: 5984: 5975: 5966: 5957: 5948: 5939: 5930: 5921: 5912: 5903: 5894: 5885: 5876: 5867: 5858: 5849: 5840: 5831: 5822: 5813: 5804: 5795: 5786: 5777: 5768: 5759: 5750: 5744: 5743: 5734: 5725: 5716: 5707: 5698: 5689: 5680: 5671: 5662: 5653: 5644: 5635: 5626: 5617: 5608: 5599: 5590: 5581: 5572: 5563: 5554: 5545: 5536: 5527: 5518: 5509: 5500: 5491: 5482: 5473: 5464: 5455: 5449: 5448: 5439: 5430: 5421: 5412: 5403: 5394: 5385: 5376: 5367: 5358: 5349: 5340: 5331: 5322: 5313: 5304: 5302: 5293: 5284: 5278: 5277: 5268: 5259: 5250: 5241: 5232: 5223: 5214: 5205: 5196: 5187: 5178: 5169: 5160: 5151: 5142: 5133: 5131: 5122: 5113: 5107: 5106: 5097: 5088: 5079: 5070: 5061: 5052: 5050: 5041: 5032: 5026: 5025: 5016: 5007: 4998: 4989: 4980: 4971: 4969: 4960: 4951: 4945: 4944: 4935: 4933: 4924: 4918: 4917: 4912: 4907: 4902: 4897: 4892: 4887: 4882: 4877: 4872: 4867: 4862: 4857: 4852: 4847: 4842: 4837: 4835: 4830: 4825: 4820: 4817: 4816: 4813:Periodic table 4809: 4808: 4801: 4794: 4786: 4777: 4776: 4774: 4773: 4761: 4748: 4745: 4744: 4742: 4741: 4736: 4731: 4730: 4729: 4724: 4713: 4711: 4707: 4706: 4704: 4703: 4702: 4701: 4696: 4691: 4686: 4681: 4671: 4670: 4669: 4664: 4659: 4648: 4646: 4640: 4639: 4636: 4635: 4633: 4632: 4630:Vapor pressure 4627: 4622: 4617: 4615:Speed of sound 4612: 4607: 4602: 4597: 4592: 4590:Heat of fusion 4587: 4582: 4577: 4572: 4567: 4562: 4557: 4552: 4547: 4545:Critical point 4542: 4537: 4532: 4526: 4524: 4520: 4519: 4517: 4516: 4511: 4506: 4501: 4496: 4491: 4485: 4483: 4477: 4476: 4474: 4473: 4468: 4463: 4458: 4446: 4444: 4435: 4429: 4428: 4425: 4424: 4422: 4421: 4416: 4411: 4406: 4401: 4396: 4391: 4386: 4384:Coinage metals 4381: 4376: 4371: 4366: 4360: 4358: 4354: 4353: 4350: 4349: 4347: 4346: 4340: 4338: 4332: 4331: 4329: 4328: 4323: 4317: 4315: 4309: 4308: 4306: 4305: 4300: 4295: 4290: 4284: 4282: 4273: 4266: 4265: 4262: 4261: 4259: 4258: 4252: 4250: 4244: 4243: 4241: 4240: 4239: 4238: 4233: 4228: 4218: 4213: 4208: 4203: 4198: 4193: 4188: 4182: 4180: 4174: 4173: 4171: 4170: 4165: 4160: 4155: 4150: 4145: 4140: 4135: 4130: 4125: 4120: 4115: 4110: 4105: 4100: 4095: 4090: 4085: 4079: 4077: 4068: 4061: 4055: 4054: 4052: 4051: 4046: 4040: 4038: 4034: 4033: 4030:Periodic table 4026: 4025: 4018: 4011: 4003: 3995: 3994: 3959: 3953:978-3527306732 3952: 3926: 3912: 3895: 3879: 3866: 3840: 3819: 3804: 3801:on 2010-02-10. 3793: 3773: 3766: 3748: 3712: 3690: 3689: 3687: 3684: 3682: 3679: 3676: 3675: 3670: 3669: 3664: 3659: 3654: 3646: 3618: 3614: 3613: 3610: 3609: 3586: 3569:Chlor­ine 3563: 3540: 3517: 3494: 3471: 3469: 3446: 3423: 3417: 3416: 3407: 3406: 3397: 3396: 3391: 3386: 3381: 3376: 3371: 3366: 3361: 3356: 3351: 3346: 3341: 3336: 3331: 3326: 3321: 3316: 3311: 3306: 3303: 3302: 3299:periodic table 3293: 3291: 3290: 3283: 3276: 3268: 3262: 3259: 3121:. Hundreds of 3079: 3076: 3011:carbon dioxide 2988:Main article: 2985: 2982: 2962:swimming pools 2893:Main article: 2890: 2887: 2812:ancient Greece 2773:reducing agent 2760: 2727:Main article: 2724: 2721: 2680:", the planet 2655:red phosphorus 2639:nitrogen group 2617:Main article: 2614: 2611: 2497:common element 2452:Main article: 2449: 2446: 2442:transportation 2352:Main article: 2349: 2346: 2342:mineral waters 2329:agent to make 2268:Main article: 2265: 2262: 2243:sodium nitrate 2193:Main article: 2190: 2187: 2184: 2183: 2180: 2175: 2172: 2169: 2163: 2162: 2159: 2154: 2151: 2148: 2142: 2141: 2138: 2133: 2130: 2127: 2121: 2120: 2117: 2112: 2109: 2106: 2100: 2099: 2096: 2091: 2088: 2085: 2079: 2078: 2075: 2070: 2067: 2064: 2058: 2057: 2054: 2049: 2046: 2043: 2037: 2036: 2033: 2028: 2025: 2022: 2016: 2015: 2010: 2005: 2002: 1997: 1985: 1982: 1942: 1939: 1935:stable isotope 1913:is one of the 1905: 1904: 1902: 1901: 1894: 1887: 1879: 1876: 1875: 1874: 1873: 1866: 1856: 1855: 1852: 1851: 1849:Vapor pressure 1846: 1836: 1834:Speed of sound 1831: 1826: 1821: 1816: 1810:of fusion 1802: 1797: 1792: 1784:Electron  1782: 1777: 1772: 1767: 1765:Critical point 1762: 1757: 1752: 1746: 1743: 1742: 1739: 1738: 1735: 1734: 1729: 1723: 1722: 1716: 1715: 1700: 1699: 1694: 1687: 1686: 1681: 1675: 1670: 1669: 1666: 1665: 1662: 1661: 1655: 1654: 1649: 1643: 1642: 1631: 1626: 1625: 1622: 1621: 1614: 1611: 1610: 1607: 1606: 1591: 1590: 1583: 1582: 1577: 1571: 1570: 1565: 1559: 1558: 1553: 1547: 1546: 1541: 1535: 1534: 1529: 1527:Coinage metals 1523: 1520: 1519: 1516: 1515: 1512: 1511: 1506: 1500: 1499: 1491: 1490: 1489: 1488: 1480: 1479: 1471: 1470: 1465: 1459: 1458: 1453: 1447: 1446: 1444:alkaline earth 1441: 1435: 1434: 1426: 1420: 1419: 1416: 1415: 1412: 1411: 1410: 1409: 1404: 1396: 1395: 1386: 1385: 1378: 1371: 1364: 1357: 1350: 1343: 1336: 1328: 1327: 1318: 1317: 1307: 1297: 1287: 1277: 1270: 1263: 1256: 1249: 1242: 1235: 1228: 1221: 1214: 1207: 1200: 1193: 1183: 1166: 1165: 1156: 1153: 1152: 1149: 1148: 1141: 1138: 1137: 1134: 1133: 1127: 1126: 1118: 1117: 1116: 1115: 1110: 1105: 1097: 1096: 1084: 1083: 1077: 1076: 1075: 1074: 1069: 1058: 1053: 1052: 1049: 1048: 1045: 1044: 1024: 1023: 1018: 1012: 1009: 1008: 1005: 1004: 1002:Periodic table 998: 997: 982: 981: 974: 967: 960: 953: 946: 939: 932: 925: 918: 911: 904: 897: 890: 883: 876: 869: 862: 855: 848: 841: 834: 827: 820: 813: 806: 799: 792: 785: 778: 771: 764: 756: 755: 748: 741: 734: 727: 720: 713: 706: 699: 692: 685: 678: 671: 664: 657: 650: 643: 636: 629: 622: 615: 608: 601: 594: 587: 580: 573: 566: 559: 552: 545: 538: 530: 529: 522: 515: 508: 501: 494: 487: 480: 473: 466: 459: 452: 445: 438: 431: 424: 417: 415: 413: 406: 398: 397: 390: 383: 376: 369: 362: 355: 348: 341: 334: 327: 320: 313: 306: 299: 292: 285: 283: 276: 268: 267: 260: 253: 246: 239: 232: 225: 223: 216: 208: 207: 200: 193: 186: 179: 172: 165: 163: 156: 148: 147: 140: 138: 128: 127: 124:periodic table 117: 116: 31: 29: 22: 15: 9: 6: 4: 3: 2: 6107: 6096: 6093: 6092: 6090: 6071: 6068: 6066: 6063: 6061: 6058: 6056: 6053: 6052: 6045: 6036: 6027: 6018: 6009: 6000: 5991: 5982: 5973: 5964: 5955: 5946: 5937: 5928: 5919: 5910: 5901: 5892: 5883: 5874: 5865: 5856: 5847: 5838: 5829: 5820: 5811: 5802: 5793: 5784: 5775: 5766: 5757: 5749: 5745: 5741: 5732: 5723: 5714: 5705: 5696: 5687: 5678: 5669: 5660: 5651: 5642: 5633: 5624: 5615: 5606: 5597: 5588: 5579: 5570: 5561: 5552: 5543: 5534: 5525: 5516: 5507: 5498: 5489: 5480: 5471: 5462: 5454: 5450: 5446: 5437: 5428: 5419: 5410: 5401: 5392: 5383: 5374: 5365: 5356: 5347: 5338: 5329: 5320: 5311: 5300: 5291: 5283: 5279: 5275: 5266: 5257: 5248: 5239: 5230: 5221: 5212: 5203: 5194: 5185: 5176: 5167: 5158: 5149: 5140: 5129: 5120: 5112: 5108: 5104: 5095: 5086: 5077: 5068: 5059: 5048: 5039: 5031: 5027: 5023: 5014: 5005: 4996: 4987: 4978: 4967: 4958: 4950: 4946: 4942: 4931: 4923: 4919: 4916: 4911: 4906: 4901: 4896: 4891: 4886: 4881: 4876: 4871: 4866: 4861: 4856: 4851: 4846: 4841: 4834: 4829: 4824: 4823: 4818: 4814: 4807: 4802: 4800: 4795: 4793: 4788: 4787: 4784: 4772: 4771: 4762: 4760: 4759: 4750: 4749: 4746: 4740: 4737: 4735: 4732: 4728: 4725: 4723: 4720: 4719: 4718: 4715: 4714: 4712: 4708: 4700: 4697: 4695: 4692: 4690: 4687: 4685: 4684:controversies 4682: 4680: 4677: 4676: 4675: 4672: 4668: 4665: 4663: 4660: 4658: 4655: 4654: 4653: 4650: 4649: 4647: 4645: 4641: 4631: 4628: 4626: 4623: 4621: 4618: 4616: 4613: 4611: 4608: 4606: 4605:Melting point 4603: 4601: 4598: 4596: 4593: 4591: 4588: 4586: 4585:Heat capacity 4583: 4581: 4578: 4576: 4573: 4571: 4568: 4566: 4563: 4561: 4558: 4556: 4553: 4551: 4548: 4546: 4543: 4541: 4540:Boiling point 4538: 4536: 4535:Atomic radius 4533: 4531: 4528: 4527: 4525: 4521: 4515: 4512: 4510: 4507: 4505: 4502: 4500: 4497: 4495: 4492: 4490: 4487: 4486: 4484: 4482: 4478: 4472: 4469: 4467: 4464: 4462: 4459: 4456: 4452: 4448: 4447: 4445: 4443: 4439: 4436: 4434: 4430: 4420: 4417: 4415: 4412: 4410: 4407: 4405: 4402: 4400: 4399:Native metals 4397: 4395: 4392: 4390: 4387: 4385: 4382: 4380: 4377: 4375: 4372: 4370: 4367: 4365: 4362: 4361: 4359: 4355: 4345: 4342: 4341: 4339: 4337: 4333: 4327: 4326:Dividing line 4324: 4322: 4319: 4318: 4316: 4314: 4310: 4304: 4301: 4299: 4296: 4294: 4291: 4289: 4286: 4285: 4283: 4281: 4277: 4274: 4272: 4267: 4257: 4254: 4253: 4251: 4249: 4245: 4237: 4234: 4232: 4229: 4227: 4224: 4223: 4222: 4219: 4217: 4214: 4212: 4209: 4207: 4204: 4202: 4199: 4197: 4194: 4192: 4189: 4187: 4184: 4183: 4181: 4179: 4175: 4169: 4166: 4164: 4163:17 (Halogens) 4161: 4159: 4156: 4154: 4151: 4149: 4146: 4144: 4141: 4139: 4136: 4134: 4131: 4129: 4126: 4124: 4121: 4119: 4116: 4114: 4111: 4109: 4106: 4104: 4101: 4099: 4096: 4094: 4091: 4089: 4086: 4084: 4081: 4080: 4078: 4076: 4072: 4069: 4065: 4062: 4060: 4056: 4050: 4047: 4045: 4042: 4041: 4039: 4035: 4031: 4024: 4019: 4017: 4012: 4010: 4005: 4004: 4001: 3990: 3986: 3982: 3978: 3974: 3970: 3963: 3955: 3949: 3945: 3941: 3937: 3930: 3922: 3916: 3909: 3908:0-7506-3365-4 3905: 3899: 3893: 3889: 3883: 3876: 3870: 3856:on 2007-09-06 3855: 3851: 3844: 3837: 3836:0-06-042995-X 3833: 3829: 3823: 3815: 3808: 3800: 3796: 3794:0-7566-1321-3 3790: 3786: 3785: 3777: 3769: 3763: 3759: 3752: 3734: 3730: 3723: 3716: 3708: 3704: 3701: 3695: 3691: 3668: 3665: 3663: 3660: 3658: 3655: 3653: 3650: 3649: 3642: 3636: 3630: 3622: 3615: 3611: 3607: 3587: 3584: 3564: 3561: 3541: 3538: 3518: 3515: 3500:Sili­con 3495: 3492: 3472: 3467: 3447: 3444: 3424: 3422: 3419: 3418: 3414: 3411:↓  3408: 3404: → 3403: 3398: 3395: 3392: 3390: 3387: 3385: 3382: 3380: 3377: 3375: 3372: 3370: 3367: 3365: 3362: 3360: 3357: 3355: 3352: 3350: 3347: 3345: 3342: 3340: 3337: 3335: 3332: 3330: 3327: 3325: 3322: 3320: 3317: 3315: 3312: 3310: 3307: 3305: 3304: 3300: 3296: 3289: 3284: 3282: 3277: 3275: 3270: 3269: 3266: 3258: 3256: 3251: 3249: 3245: 3241: 3236: 3234: 3230: 3226: 3222: 3219: 3215: 3211: 3207: 3203: 3197: 3195: 3190: 3189:phospholipids 3186: 3182: 3178: 3173: 3171: 3167: 3163: 3158: 3155: 3150: 3148: 3144: 3140: 3136: 3132: 3128: 3124: 3120: 3116: 3112: 3108: 3107:polyphosphate 3104: 3100: 3095: 3093: 3089: 3085: 3082:Sodium is an 3075: 3073: 3069: 3065: 3060: 3058: 3054: 3050: 3046: 3042: 3038: 3033: 3031: 3027: 3023: 3019: 3016: 3012: 3008: 3004: 3000: 2996: 2991: 2981: 2979: 2975: 2971: 2967: 2963: 2959: 2955: 2950: 2948: 2944: 2940: 2936: 2932: 2927: 2925: 2921: 2917: 2913: 2909: 2905: 2901: 2896: 2886: 2884: 2880: 2876: 2872: 2868: 2867:sulfuric acid 2864: 2860: 2856: 2852: 2847: 2845: 2841: 2837: 2833: 2829: 2825: 2821: 2817: 2813: 2809: 2805: 2801: 2796: 2794: 2790: 2786: 2782: 2778: 2774: 2770: 2766: 2758: 2754: 2750: 2746: 2743: 2739: 2735: 2730: 2720: 2718: 2714: 2710: 2706: 2702: 2697: 2695: 2691: 2687: 2683: 2679: 2675: 2674: 2663: 2658: 2656: 2652: 2648: 2644: 2640: 2636: 2633: 2629: 2625: 2620: 2610: 2608: 2604: 2599: 2597: 2593: 2589: 2585: 2581: 2577: 2573: 2569: 2565: 2561: 2557: 2553: 2549: 2545: 2541: 2536: 2534: 2530: 2526: 2522: 2518: 2514: 2510: 2506: 2502: 2498: 2493: 2491: 2487: 2483: 2479: 2475: 2471: 2468: 2464: 2460: 2455: 2445: 2443: 2439: 2435: 2431: 2427: 2423: 2418: 2416: 2412: 2408: 2404: 2403:Earth's crust 2400: 2396: 2392: 2388: 2384: 2383:p-block metal 2380: 2376: 2372: 2368: 2364: 2360: 2355: 2345: 2343: 2338: 2336: 2332: 2328: 2324: 2320: 2314: 2312: 2308: 2304: 2300: 2296: 2292: 2291:Earth's crust 2288: 2284: 2280: 2276: 2271: 2261: 2259: 2255: 2251: 2246: 2244: 2240: 2236: 2231: 2229: 2225: 2221: 2217: 2213: 2209: 2208:alkali metals 2205: 2201: 2196: 2181: 2179: 2176: 2173: 2170: 2168: 2164: 2160: 2158: 2155: 2152: 2149: 2147: 2143: 2139: 2137: 2134: 2131: 2128: 2126: 2122: 2118: 2116: 2113: 2110: 2107: 2105: 2101: 2097: 2095: 2092: 2089: 2086: 2084: 2080: 2076: 2074: 2071: 2068: 2065: 2063: 2059: 2055: 2053: 2050: 2047: 2044: 2042: 2038: 2034: 2032: 2029: 2026: 2023: 2021: 2017: 2014: 2009: 1996: 1992: 1981: 1979: 1975: 1971: 1967: 1963: 1959: 1952: 1948: 1938: 1936: 1932: 1928: 1924: 1920: 1916: 1912: 1900: 1895: 1893: 1888: 1886: 1881: 1880: 1878: 1877: 1872: 1871: 1867: 1865: 1864: 1860: 1859: 1858: 1857: 1850: 1847: 1845: 1842: /  1841: 1838:Thermal  1837: 1835: 1832: 1830: 1827: 1825: 1824:Melting point 1822: 1820: 1817: 1815: 1812: /  1811: 1808: /  1807: 1803: 1801: 1798: 1796: 1793: 1791: 1790:configuration 1788: /  1787: 1783: 1781: 1778: 1776: 1773: 1771: 1768: 1766: 1763: 1761: 1760:Boiling point 1758: 1756: 1755:Atomic radius 1753: 1751: 1748: 1747: 1741: 1740: 1733: 1730: 1728: 1725: 1724: 1721: 1718: 1717: 1713: 1709: 1705: 1702: 1701: 1698: 1697:configuration 1695: 1693: 1689: 1688: 1685: 1682: 1680: 1677: 1676: 1673: 1668: 1667: 1660: 1657: 1656: 1653: 1650: 1648: 1645: 1644: 1640: 1639:in human body 1636: 1633: 1632: 1629: 1624: 1623: 1619: 1618: 1613: 1612: 1604: 1600: 1596: 1593: 1592: 1588: 1585: 1584: 1581: 1578: 1576: 1573: 1572: 1569: 1566: 1564: 1563:Native metals 1561: 1560: 1557: 1554: 1552: 1549: 1548: 1545: 1542: 1540: 1537: 1536: 1533: 1530: 1528: 1525: 1524: 1518: 1517: 1510: 1507: 1505: 1502: 1501: 1498: 1497: 1493: 1492: 1487: 1484: 1483: 1482: 1481: 1478: 1477: 1473: 1472: 1469: 1466: 1464: 1461: 1460: 1457: 1454: 1452: 1449: 1448: 1445: 1442: 1440: 1437: 1436: 1433: 1432: 1428: 1427: 1424: 1418: 1417: 1408: 1405: 1403: 1400: 1399: 1398: 1397: 1394: 1392: 1388: 1387: 1384: 1379: 1377: 1372: 1370: 1365: 1363: 1358: 1356: 1351: 1349: 1344: 1342: 1337: 1335: 1330: 1329: 1326: 1324: 1320: 1319: 1316: 1314: 1313:(noble gases) 1308: 1306: 1304: 1298: 1296: 1294: 1288: 1286: 1284: 1278: 1276: 1271: 1269: 1264: 1262: 1257: 1255: 1250: 1248: 1243: 1241: 1236: 1234: 1229: 1227: 1222: 1220: 1215: 1213: 1208: 1206: 1201: 1199: 1194: 1192: 1190: 1184: 1181: 1179: 1178:alkali metals 1173: 1168: 1167: 1164: 1162: 1158: 1157: 1151: 1150: 1146: 1145: 1140: 1139: 1132: 1129: 1128: 1124: 1120: 1119: 1114: 1113:controversies 1111: 1109: 1106: 1104: 1101: 1100: 1099: 1098: 1095: 1094: 1090: 1086: 1085: 1082: 1079: 1078: 1073: 1070: 1068: 1065: 1064: 1063: 1060: 1059: 1056: 1051: 1050: 1039: 1029: 1026: 1025: 1022: 1019: 1017: 1014: 1013: 1007: 1006: 1003: 1000: 999: 995: 991: 990: 980: 975: 973: 968: 966: 961: 959: 954: 952: 947: 945: 940: 938: 933: 931: 926: 924: 919: 917: 912: 910: 905: 903: 898: 896: 891: 889: 884: 882: 880:Rutherfordium 877: 875: 870: 868: 863: 861: 856: 854: 849: 847: 842: 840: 835: 833: 828: 826: 821: 819: 814: 812: 807: 805: 800: 798: 793: 791: 786: 784: 779: 777: 772: 770: 765: 763: 758: 757: 754: 749: 747: 742: 740: 735: 733: 728: 726: 721: 719: 714: 712: 707: 705: 700: 698: 693: 691: 686: 684: 679: 677: 672: 670: 665: 663: 658: 656: 651: 649: 644: 642: 637: 635: 630: 628: 623: 621: 616: 614: 609: 607: 602: 600: 595: 593: 588: 586: 581: 579: 574: 572: 567: 565: 560: 558: 553: 551: 546: 544: 539: 537: 532: 531: 528: 523: 521: 516: 514: 509: 507: 502: 500: 495: 493: 488: 486: 481: 479: 474: 472: 467: 465: 460: 458: 453: 451: 446: 444: 439: 437: 432: 430: 425: 423: 418: 414: 412: 407: 405: 400: 399: 396: 391: 389: 384: 382: 377: 375: 370: 368: 363: 361: 356: 354: 349: 347: 342: 340: 335: 333: 328: 326: 321: 319: 314: 312: 307: 305: 300: 298: 293: 291: 286: 282: 277: 275: 270: 269: 266: 261: 259: 254: 252: 247: 245: 240: 238: 233: 231: 226: 222: 217: 215: 210: 209: 206: 201: 199: 194: 192: 187: 185: 180: 178: 173: 171: 166: 162: 157: 155: 150: 149: 146: 141: 137: 132: 131: 125: 113: 110: 102: 91: 88: 84: 81: 77: 74: 70: 67: 63: 60: –  59: 55: 54:Find sources: 48: 44: 38: 37: 32:This article 30: 26: 21: 20: 5029: 4763: 4751: 4734:Trivial name 4722:nomenclature 4394:Heavy metals 4389:Noble metals 4195: 4148:14 (Tetrels) 4044:Alternatives 3972: 3968: 3962: 3935: 3929: 3915: 3898: 3882: 3869: 3858:. Retrieved 3854:the original 3843: 3838:, p. 28 3827: 3822: 3807: 3799:the original 3783: 3776: 3757: 3751: 3740:. Retrieved 3728: 3715: 3694: 3640: 3429:So­dium 3420: 3294: 3252: 3237: 3198: 3174: 3166:silicic acid 3159: 3151: 3096: 3081: 3061: 3049:triple point 3040: 3034: 3022:potassium-40 2998: 2994: 2993: 2951: 2946: 2938: 2928: 2903: 2899: 2898: 2875:insecticides 2848: 2827: 2797: 2779:and several 2737: 2733: 2732: 2713:nerve agents 2698: 2678:Morning Star 2671: 2659: 2627: 2623: 2622: 2603:fumed silica 2600: 2537: 2519:(silica) or 2494: 2489: 2462: 2458: 2457: 2419: 2409:. The chief 2366: 2362: 2358: 2357: 2339: 2319:electrolysis 2315: 2278: 2274: 2273: 2254:electrolysis 2250:Humphry Davy 2247: 2232: 2203: 2199: 2198: 1957: 1944: 1910: 1908: 1868: 1861: 1840:conductivity 1635:by abundance 1615: 1587:Transuranium 1568:Noble metals 1556:Light metals 1551:Heavy metals 1494: 1474: 1429: 1389: 1345: 1321: 1312: 1302: 1293:(chalcogens) 1292: 1283:(pnictogens) 1282: 1188: 1177: 1159: 1142: 1123:in East Asia 1087: 1062:D. Mendeleev 922:Darmstadtium 789:Protactinium 563:Praseodymium 105: 96: 86: 79: 72: 65: 53: 41:Please help 36:verification 33: 4770:WikiProject 4514:Term symbol 4344:Noble gases 4288:Lanthanides 4271:metallicity 4143:13 (Triels) 3218:amino acids 3214:thioredoxin 3210:glutathione 3194:fertilizers 3162:sea sponges 3131:fertilizers 3127:chlorophyll 3003:noble gases 2863:fertilizers 2855:natural gas 2765:crystalline 2745:multivalent 2643:pentavalent 2632:multivalent 2430:passivation 2397:), and the 2375:boron group 1028:Alternative 964:Livermorium 936:Copernicium 929:Roentgenium 859:Mendelevium 845:Einsteinium 838:Californium 4694:for people 4689:for places 4662:1871 table 4555:Elasticity 4523:Data pages 4481:Properties 4357:Other sets 4313:Metalloids 3860:2007-08-28 3787:. Dk Pub. 3742:2008-02-15 3686:References 3628:From decay 3621:Primordial 3255:asphyxiant 3225:methionine 3099:human body 3068:liquid air 3015:radiogenic 2939:muriaticum 2931:table salt 2879:fungicides 2851:salt domes 2808:polyhedron 2749:chalcogens 2709:pesticides 2705:detergents 2694:octet rule 2624:Phosphorus 2619:Phosphorus 2613:Phosphorus 2570:, to make 2509:planetoids 2307:solubility 2235:soapmaking 2104:Phosphorus 1978:octet rule 1804:Heat  1775:Elasticity 1476:Metalloids 1463:lanthanide 1451:transition 1325:(1–7, ...) 1303:(halogens) 1108:for places 1103:for people 1067:1871 table 971:Tennessine 915:Meitnerium 894:Seaborgium 873:Lawrencium 612:Dysprosium 598:Gadolinium 577:Promethium 449:Technetium 442:Molybdenum 243:Phosphorus 99:March 2024 69:newspapers 4679:etymology 4530:Abundance 4455:in humans 4451:Abundance 4336:Nonmetals 4293:Actinides 3975:: 21–41. 3873:Nave, R. 3635:Synthetic 3229:Disulfide 3147:eclampsia 3135:laxatives 3088:potassium 2968:. In the 2958:bleaching 2859:petroleum 2828:brimstone 2781:nonmetals 2596:silicones 2580:porcelain 2542:, silica 2521:silicates 2478:germanium 2470:metalloid 2438:aerospace 2426:corrosion 2401:, in the 2359:Aluminium 2354:Aluminium 2348:Aluminium 2335:magnalium 2331:aluminium 2303:supernova 2275:Magnesium 2270:Magnesium 2264:Magnesium 2224:rock salt 2216:feldspars 2062:Aluminium 2041:Magnesium 1921:) of the 1750:Abundance 1727:Nutrition 1690:Electron 1659:by symbol 1605:actinides 1509:noble gas 1496:Nonmetals 1093:etymology 1021:32-column 1016:18-column 978:Oganesson 957:Moscovium 950:Flerovium 831:Berkelium 817:Americium 810:Plutonium 803:Neptunium 640:Ytterbium 570:Neodymium 549:Lanthanum 512:Tellurium 470:Palladium 456:Ruthenium 428:Zirconium 410:Strontium 366:Germanium 317:Manganese 273:Potassium 229:Aluminium 220:Magnesium 160:Beryllium 6089:Category 4758:Category 4710:See also 4580:Hardness 4433:Elements 3733:Archived 3703:Archived 3295:Period 3 3248:chloride 3221:cysteine 3206:thiamine 3090:ions to 3026:argon-36 3018:argon-40 2997:(symbol 2966:sanitary 2902:(symbol 2900:Chlorine 2895:Chlorine 2889:Chlorine 2793:fluorine 2751:. Under 2742:abundant 2740:) is an 2736:(symbol 2667:Φωσφόρος 2635:nonmetal 2626:(symbol 2578:such as 2576:ceramics 2572:concrete 2467:group 14 2461:(symbol 2407:minerals 2367:aluminum 2361:(symbol 2327:alloying 2311:seawater 2295:universe 2281:) is an 2277:(symbol 2220:sodalite 2202:(symbol 2146:Chlorine 1984:Elements 1970:period 4 1863:Category 1806:capacity 1800:Hardness 1786:affinity 1692:affinity 1617:Elements 1589:elements 1468:actinide 1038:extended 994:a series 992:Part of 943:Nihonium 866:Nobelium 775:Actinium 761:Francium 745:Astatine 738:Polonium 717:Thallium 696:Platinum 668:Tungsten 661:Tantalum 647:Lutetium 591:Europium 584:Samarium 505:Antimony 403:Rubidium 380:Selenium 310:Chromium 303:Vanadium 296:Titanium 289:Scandium 257:Chlorine 197:Fluorine 183:Nitrogen 135:Hydrogen 6070:p-block 6065:d-block 6060:f-block 6055:s-block 4644:History 4550:Density 4178:Periods 3989:6087860 3667:p-block 3662:d-block 3657:f-block 3652:s-block 3638:  3632:  3624:  3601:​ 3578:​ 3555:​ 3532:​ 3509:​ 3486:​ 3461:​ 3438:​ 3297:in the 3233:keratin 3170:diatoms 3123:enzymes 2908:halogen 2871:matches 2832:English 2804:sulfate 2800:sulfide 2769:oxidant 2717:matches 2673:Lucifer 2637:of the 2630:) is a 2586:-based 2513:planets 2486:silicis 2465:) is a 2459:Silicon 2454:Silicon 2448:Silicon 2422:density 2415:bauxite 2395:silicon 2389:(after 2289:in the 2212:isotope 2178:p-block 2157:p-block 2136:p-block 2115:p-block 2094:p-block 2083:Silicon 2073:p-block 2052:s-block 2031:s-block 2004:Symbol 1995:Element 1962:) shell 1955:third ( 1931:p-block 1927:s-block 1770:Density 1732:Valence 1712:Pauling 1323:Periods 908:Hassium 901:Bohrium 887:Dubnium 852:Fermium 796:Uranium 782:Thorium 731:Bismuth 689:Iridium 675:Rhenium 654:Hafnium 633:Thulium 619:Holmium 605:Terbium 535:Caesium 484:Cadmium 463:Rhodium 435:Niobium 421:Yttrium 394:Krypton 387:Bromine 373:Arsenic 359:Gallium 280:Calcium 236:Silicon 153:Lithium 83:scholar 4674:Naming 4471:Symbol 4280:Metals 4248:Blocks 4236:Pyykkö 4231:Fricke 4226:Aufbau 4075:Groups 3987:  3950:  3906:  3834:  3791:  3764:  3641:Border 3546:Sulfur 3534:30.974 3511:28.085 3488:26.982 3463:24.305 3440:22.990 3413:Period 3250:ions. 3202:biotin 3117:, and 2947:χλωρός 2789:oxygen 2777:metals 2734:Sulfur 2729:Sulfur 2723:Sulfur 2662:oxygen 2584:quartz 2568:gravel 2564:stucco 2560:mortar 2533:oxygen 2474:carbon 2434:alloys 2391:oxygen 2381:and a 2299:mantle 2200:Sodium 2195:Sodium 2189:Sodium 2182:3s 3p 2161:3s 3p 2140:3s 3p 2125:Sulfur 2119:3s 3p 2098:3s 3p 2077:3s 3p 2020:Sodium 1919:period 1603:trans- 1439:alkali 1431:Metals 1391:Blocks 1163:(1–18) 1161:Groups 1089:Naming 1041:  1035:  1031:  996:on the 824:Curium 768:Radium 682:Osmium 626:Erbium 556:Cerium 542:Barium 519:Iodine 491:Indium 477:Silver 345:Copper 338:Nickel 331:Cobalt 250:Sulfur 213:Sodium 190:Oxygen 176:Carbon 144:Helium 85:  78:  71:  64:  56:  4717:IUPAC 4442:Lists 3736:(PDF) 3725:(PDF) 3681:Notes 3603:39.95 3592:Argon 3580:35.45 3557:32.06 3402:Group 3143:nerve 3103:cells 3045:octet 3041:ἀργόν 3037:Greek 2995:Argon 2990:Argon 2984:Argon 2824:Bible 2820:Egypt 2816:China 2771:or a 2682:Venus 2552:brick 2548:stone 2540:clays 2505:sands 2501:dusts 2482:Latin 2365:) or 2323:brine 2167:Argon 2008:Block 1945:In a 1708:Allen 1599:minor 1595:Major 1043:forms 752:Radon 526:Xenon 264:Argon 169:Boron 90:JSTOR 76:books 4449:By: 3985:PMID 3948:ISBN 3904:ISBN 3832:ISBN 3789:ISBN 3762:ISBN 3223:and 3212:and 3204:and 2877:and 2857:and 2818:and 2802:and 2791:and 2715:and 2711:and 2653:and 2562:and 2558:for 2546:and 2544:sand 2511:and 2490:-ium 2393:and 2222:and 1601:and 1091:and 724:Lead 703:Gold 352:Zinc 324:Iron 204:Neon 62:news 4269:By 3977:doi 3940:doi 3888:doi 3242:in 3185:ATP 3181:RNA 3177:DNA 3149:). 3119:RNA 3115:DNA 3111:ATP 3066:of 2830:in 2826:as 2703:in 2411:ore 2377:of 2256:of 2239:ion 2056:3s 2035:3s 1960:= 3 1421:By 1311:18 1301:17 1291:16 1281:15 1033:and 498:Tin 45:by 6091:: 6034:Og 6025:Ts 6016:Lv 6007:Mc 5998:Fl 5989:Nh 5980:Cn 5971:Rg 5962:Ds 5953:Mt 5944:Hs 5935:Bh 5926:Sg 5917:Db 5908:Rf 5899:Lr 5890:No 5881:Md 5872:Fm 5863:Es 5854:Cf 5845:Bk 5836:Cm 5827:Am 5818:Pu 5809:Np 5791:Pa 5782:Th 5773:Ac 5764:Ra 5755:Fr 5739:Rn 5730:At 5721:Po 5712:Bi 5703:Pb 5694:Tl 5685:Hg 5676:Au 5667:Pt 5658:Ir 5649:Os 5640:Re 5622:Ta 5613:Hf 5604:Lu 5595:Yb 5586:Tm 5577:Er 5568:Ho 5559:Dy 5550:Tb 5541:Gd 5532:Eu 5523:Sm 5514:Pm 5505:Nd 5496:Pr 5487:Ce 5478:La 5469:Ba 5460:Cs 5444:Xe 5426:Te 5417:Sb 5408:Sn 5399:In 5390:Cd 5381:Ag 5372:Pd 5363:Rh 5354:Ru 5345:Tc 5336:Mo 5327:Nb 5318:Zr 5298:Sr 5289:Rb 5273:Kr 5264:Br 5255:Se 5246:As 5237:Ge 5228:Ga 5219:Zn 5210:Cu 5201:Ni 5192:Co 5183:Fe 5174:Mn 5165:Cr 5147:Ti 5138:Sc 5127:Ca 5102:Ar 5093:Cl 5066:Si 5057:Al 5046:Mg 5037:Na 5021:Ne 4965:Be 4956:Li 4940:He 4915:18 4910:17 4905:16 4900:15 4895:14 4890:13 4885:12 4880:11 4875:10 4221:8+ 4138:12 4133:11 4128:10 3983:. 3971:. 3946:. 3938:. 3731:. 3727:. 3598:Ar 3595:18 3575:Cl 3572:17 3549:16 3526:15 3506:Si 3503:14 3483:Al 3480:13 3458:Mg 3455:12 3435:Na 3432:11 3394:18 3389:17 3384:16 3379:15 3374:14 3369:13 3364:12 3359:11 3354:10 3257:. 3227:. 3183:, 3179:, 3172:. 3113:, 3074:. 3059:. 3032:. 2999:Ar 2980:. 2926:. 2904:Cl 2873:, 2814:, 2795:. 2719:. 2707:, 2696:. 2598:. 2535:. 2507:, 2503:, 2484:: 2463:Si 2417:. 2363:Al 2344:. 2313:. 2279:Mg 2260:. 2245:. 2230:. 2218:, 2204:Na 2174:Ar 2171:18 2153:Cl 2150:17 2129:16 2108:15 2090:Si 2087:14 2069:Al 2066:13 2048:Mg 2045:12 2027:Na 2024:11 1937:. 1909:A 1710:, 1597:, 1382:8+ 1274:14 1267:13 1260:12 1253:11 1246:10 1187:2 5800:U 5748:7 5631:W 5453:6 5435:I 5309:Y 5282:5 5156:V 5118:K 5111:4 5084:S 5075:P 5030:3 5012:F 5003:O 4994:N 4985:C 4976:B 4949:2 4929:H 4922:1 4870:9 4865:8 4860:7 4855:6 4850:5 4845:4 4840:3 4833:2 4828:1 4805:e 4798:t 4791:v 4457:) 4453:( 4216:7 4211:6 4206:5 4201:4 4196:3 4191:2 4186:1 4123:9 4118:8 4113:7 4108:6 4103:5 4098:4 4093:3 4022:e 4015:t 4008:v 3991:. 3979:: 3973:4 3956:. 3942:: 3923:. 3910:. 3890:: 3863:. 3816:. 3770:. 3745:. 3552:S 3529:P 3421:3 3349:9 3344:8 3339:7 3334:6 3329:5 3324:4 3319:3 3314:2 3309:1 3287:e 3280:t 3273:v 3053:K 2761:8 2738:S 2628:P 2369:( 2132:S 2111:P 2000:# 1958:n 1898:e 1891:t 1884:v 1714:) 1706:( 1641:) 1637:( 1375:7 1368:6 1361:5 1354:4 1347:3 1340:2 1333:1 1239:9 1232:8 1225:7 1218:6 1211:5 1204:4 1197:3 1182:) 1174:( 1171:1 1125:) 1121:( 112:) 106:( 101:) 97:( 87:· 80:· 73:· 66:· 39:.

Index


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periodic table
Hydrogen
Helium
Lithium
Beryllium
Boron
Carbon
Nitrogen
Oxygen
Fluorine
Neon
Sodium
Magnesium
Aluminium
Silicon
Phosphorus
Sulfur
Chlorine
Argon

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