ChemicalElements

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Element Symbol AtomicNumber ChemicalPropertyId OriginOfName Group Period AtomicWeight AtomicWeightUncertainty Density MeltingPoint BoilingPoint HeatCapacity Electronegativity AbundanceInEarthsCrust
Radon Rn 86 Noble gas From radium, as it was first detected as an emission from radium during radioactive decay 18 6 0.01 202.00 211.30 0.09 2.20 0.00
Ruthenium Ru 44 Transition metal Ruthenia, the New Latin name for Russia 8 5 101.07 0.02 12.37 2607.00 4423.00 0.24 2.20 0.00
Sulfur S 16 Reactive nonmetal the Latin sulphur, 'fire and brimstone' 16 3 32.06 2.07 388.36 717.87 0.71 2.58 350.00
Antimony Sb 51 Metalloid uncertain: perhaps from the Greek anti, 'against', and monos, 'alone', or the Old French antimoine, 'Monk's bane' (stibium in Latin) 15 5 121.76 0.00 6.69 903.78 1860.00 0.21 2.05 0.20
Scandium Sc 21 Transition metal Scandia, the Latin name for Scandinavia 3 4 44.96 0.00 2.99 1814.00 3109.00 0.57 1.36 22.00
Selenium Se 34 Reactive nonmetal the Greek selene, 'moon' 16 4 78.97 0.01 4.81 453.00 958.00 0.32 2.55 0.05
Seaborgium Sg 106 Transition metal Glenn T. Seaborg, scientist 6 7 -35.00 0.00
Silicon Si 14 Metalloid from the Latin silex, 'flint' (originally silicium) 14 3 28.09 2.33 1687.00 3538.00 0.71 1.90 282000.00
Samarium Sm 62 Lan­thanide Samarskite, the name of the mineral from which it was first isolated 6 150.36 0.02 7.52 1345.00 2067.00 0.20 1.17 7.05
Tin Sn 50 Post-​transition metal English word (stannum in Latin) 14 5 118.71 0.01 7.29 505.08 2875.00 0.23 1.96 2.30