Sulfur has been known since ancient times. It was first classified as an element by Antoine Lavoisier, in 1777. Joseph Gay-Lussac and Louis Thénard finally proved it was an element in 1809.
Name: Sulfur
Symbol: S
Atomic number: 16
Atomic weight: 32.06
State: solid
Group, period, block: 16, 3, p
Color: lemon yellow sintered microcrystals
Classification: Non-metallic
Electron configuration: 3s2 3p4
2,8,6
Physical properties
Density @293 K:: 2.07 g.m-3
Melting point: 388.36 K, 115.21 °C, 239.38 °F
Boiling point: 717.8 K, 444.6 °C, 832.3 °F
Atomic properties
Oxidation states: 6, 5, 4, 3, 2, 1, -1, -2
Electronegativity: 2.58 (Pauling scale)
Ionization energies: 1st: 999.6 kJ·mol-1
Covalent radius: 105±3 pm
Van der Waals radius: 180 pm
- S
Electron Configuration
Isotopes
There are four naturally occurring isotopes of sulfur exist, 32S, 33S, 34S and 36S.