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Sulfur (S)

From Wikipedia, the free encyclopediaSulfur or sulphur (see spelling differences) is a chemical element with symbol S and atomic number 16. It is an abundant, multivalent non-metal. Under normal conditions, sulfur atoms form cyclic octatomic molecules with chemical formula S8.

Sulfur in the periodic table

SymbolS
Atomic number16
Group16
Period3
Blockp
Element categoryNonmetal

Physical properties

Phase at STPSolid
Density2.07 g/cm3
Atomic weight32.06 u
Melting point388.36 K
115.21 °C
239.378 °F
Boiling point717.8 K
444.65 °C
832.37 °F

Atomic properties

Electronegativity (Pauling Scale)2.58
Electron affinity200.41 kJ/mol
Oxidation states−2, −1, 0, +1, +2, +3, +4, +5, +6
(a strongly acidic oxide)
Ionization energies
1999.6 kJ/mol
2 2252 kJ/mol
3 3357 kJ/mol
4 4556 kJ/mol
5 7004.3 kJ/mol
6 8495.8 kJ/mol
7 27107 kJ/mol
8 31719 kJ/mol
9 36621 kJ/mol
10 43177 kJ/mol
11 48710 kJ/mol
12 54460 kJ/mol
13 62930 kJ/mol
14 68216 kJ/mol
15 311048 kJ/mol
16 337138 kJ/mol

Electron configuration

Elektronkonfiguration (shorthand)[Ne] 3s2 3p4
Electron configuration1s2 2s2 2p6 3s2 3p4
Electrons per shell2, 8, 6

History

Discovered-2000
Discovered byMiddle East
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