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Mercury (Hg)
Atomic number 80 · transition
| Atomic number | 80 |
|---|---|
| Atomic mass | 200.592 u |
| Molar mass | 200.592 g/mol |
| Category | transition |
| Group / period / block | 12 / 6 / d |
| Electron configuration | [Xe] 4f14 5d10 6s2 |
| Electrons per shell | 2, 8, 18, 32, 18, 2 |
| Electronegativity (Pauling) | 1.9 |
| Atomic radius | 150.0 pm |
| Density | 13.5336 g/cm³ |
| First ionisation energy | 10.4375 eV |
| Melting point | 234.32 K (-38.83 °C) |
| Boiling point | 629.77 K (356.62 °C) |
| Common oxidation states | +1, +2 |
| Abundance in Earth's crust | 0.085 ppm |
Uses
Old thermometers, fluorescent lamps
Discovery
Known since ancient times