Sulfur (S)
Sulfur (S) is element 16 of the periodic table, a nonmetal in period 3 and group 16. Its standard atomic weight is 32.06, so one mole of sulfur atoms has a mass of 32.06 g. At room temperature it is a solid; it melts at 115.21 °C and boils at 444.6 °C.
| Atomic number | 16 |
|---|---|
| Symbol | S |
| Standard atomic weight | 32.06 |
| Molar mass | 32.06 g/mol |
| Category | Nonmetal |
| Group | 16 |
| Period | 3 |
| Block | p-block |
| Electron configuration | [Ne] 3s2 3p4 |
| Oxidation states | +6, +4, −2 |
| Electronegativity (Pauling) | 2.58 |
| Atomic radius (van der Waals) | 180 pm |
| First ionisation energy | 10.36 eV (999.6 kJ/mol) |
| Electron affinity | 2.077 eV |
| State at room temperature | Solid |
| Melting point | 388.36 K (115.21 °C) |
| Boiling point | 717.75 K (444.6 °C) |
| Density | 2.067 g/cm³ |
| Discovered | Known since antiquity |
Group 16
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Atomic weight: IUPAC CIAAW standard atomic weight. Other properties: PubChem (U.S. National Library of Medicine, public domain). Values such as melting point and radius depend on how they were measured; check a data book for precise work.