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  • Contains 118 records / 23 fields
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  • Data sourced from: https://github.com/dariusk/corpora

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Atomic Number Name Symbol Atomic Weight Period Group Phase Most Stable Crystal Type Ionic Radius Atomic Radius Electronegativity First Ionization Potential Density Melting Point Boiling Point Isotopes Discoverer Year Of Discovery Specific Heat Capacity Electron Configuration Display Row Display Column
1HydrogenH111gasNonmetal0.0120.792.213.59840.0000898814.17520.283Cavendish176614.3041s111
2HeliumHe4118gasNoble Gas0.4924.58740.00017854.225Janssen18685.1931s2118
3LithiumLi621solidbccAlkali Metal0.762.10.985.39170.534453.8516155Arfvedson18173.582[He] 2s121
4BerylliumBe922solidhexAlkaline Earth Metal0.351.41.579.32271.851560.1527426Vaulquelin17981.825[He] 2s222
5BoronB10213solidrhoMetalloid0.231.22.048.2982.342573.1542006Gay-Lussac18081.026[He] 2s2 2p1213
6CarbonC12214solidhexNonmetal0.912.5511.26032.2673948.1543007Prehistoric0.709[He] 2s2 2p2214
7NitrogenN14215gasNonmetal0.130.753.0414.53410.001250663.2977.368Rutherford17721.04[He] 2s2 2p3215
8OxygenO15216gasNonmetal1.40.653.4413.61810.00142950.590.28Priestley/Scheele17740.918[He] 2s2 2p4216
9FluorineF18217gasHalogen1.30.573.9817.42280.00169653.6385.036Moissan18860.824[He] 2s2 2p5217
10NeonNe20218gasNoble Gas0.5121.56450.000899924.70327.078Ramsay and Travers18981.03[He] 2s2 2p6218
11SodiumNa2231solidbccAlkali Metal12.20.935.13910.971371.1511567Davy18071.228[Ne] 3s131
12MagnesiumMg2432solidhexAlkaline Earth Metal0.721.71.317.64621.738923.1513638Black17551.023[Ne] 3s232
13AluminumAl26313solidfccMetal0.541.81.615.98582.698933.427928W�hler18270.897[Ne] 3s2 3p1313
14SiliconSi28314solidfccMetalloid0.41.51.98.15172.32961683.1535388Berzelius18240.705[Ne] 3s2 3p2314
15PhosphorusP30315solidcubNonmetal0.381.22.1910.48671.82317.255537BranBrand16690.769[Ne] 3s2 3p3315
16SulfurS32316solidorthNonmetal0.371.12.5810.362.067388.51717.810Prehistoric0.71[Ne] 3s2 3p4316
17ChlorineCl35317gasHalogen1.80.973.1612.96760.003214172.31239.1111Scheele17740.479[Ne] 3s2 3p5317
18ArgonAr39318gasNoble Gas0.8815.75960.001783783.9687.38Rayleigh and Ramsay18940.52[Ne] 3s2 3p6318
19PotassiumK3941solidbccAlkali Metal1.42.80.824.34070.862336.5103210Davy18070.757[Ar] 4s141
20CalciumCa4042solidfccAlkaline Earth Metal0.992.216.11321.541112.15175714Davy18080.647[Ar] 4s242
Source: https://github.com/dariusk/corpora Last updated: 2026-04