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80
Hg
200.59
Mercury
Transition metals · Group 12 · Period 6
Atomic properties
| Atomic number | 80 |
|---|---|
| Symbol | Hg |
| Standard atomic weight | 200.59 |
| Classification | Transition metals |
| Group | 12 |
| Period | 6 |
| Block | d-block |
| Electron configuration | [Xe] 4f14 5d10 6s2 |
| Electronegativity (Pauling) | 2.00 |
| Common oxidation states | +2, +1 |
Physical properties
| Phase at 20 °C | Liquid |
|---|---|
| Density | 13.534 g/cm³ |
| Melting point | -38.83 °C |
| Boiling point | 356.73 °C |
| Discovered | Ancient |
| CAS number | — |