Mercury |
| Symbol | Hg |
|---|---|
| Latin name | Hydrargyrum |
| Atomic number | 80 |
| Period | 6 |
| Element category | Transition elements |
| Relative atomic mass | 200.59 |
| Group | II.B |
| Electronegativity | 1.9 |
| Oxidation numbers | 1, 2 |
| Electron configuration | 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 |
| Density [g/cm3] | 13.546 |
| State | Liquid |
| Melting point [°C] | -38.862 |
| Boiling point [°C] | 356.66 |
| Critical point [°C] | 1477 |
| Critical pressure [MPa] | 172 |
| Atomic radius [pm] | 171 |
| Covalent radius [pm] | 149 |
| Thermal conductivity [W m-1K-1] | 8.34 |
| Heat capacity [J K-1g-1] | 0.140 |
| Discovery | Antiquity |
| Hardness [Mohs scale] | 1.5 |
| Electrical conductivity [S m-1] | 1 · 106 |
| Electrical resistivity [10-6Ω.m] | 0.959 |
| 1.st ionization energy [eV] | 10.4375 |
| 2.nd ionization energy [eV] | 18.759 |
| 3.rd ionization energy [eV] | 34.202 |
| Stable isotopes | 7 |
| Unstable isotopes | 19 |