16S32.07
Sulfur
Nonmetal
Solid at STP
Period 3Group 16Block PDiscovered Ancient
[Ne]3s2 3p4
Sulfur 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.
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Atomic Properties
| Atomic Number | 16 |
| Atomic Mass | 32.07 u |
| Electron Configuration | [Ne]3s2 3p4 |
| Oxidation States | +6, +4, -2 |
| Electronegativity | 2.58 (Pauling) |
| Atomic Radius | 180 pm |
| Ionization Energy | 10.36 eV |
| Electron Affinity | 2.077 eV |
| Block | P |
Physical Properties
| Appearance | lemon yellow sintered microcrystals |
| Standard State | Solid |
| Melting Point | 388.36 K (115.2 °C) |
| Boiling Point | 717.75 K (444.6 °C) |
| Density | 2.067 g/cm³ |
| Molar Heat | 22.75 J/(mol·K) |
| CPK Color | #FFFF30 |
Classification
| Category | Nonmetal |
| Group Block | Nonmetal |
| Period | 3 |
| Group | 16 |
| Block | P |
Discovery
| Year Discovered | Ancient |
| Discovered By | Ancient china |
| Electron Shells | 2, 8, 6 |