Mercury (Hg)
Hydrargyrum
Mercury (Hg) is a transition metal in period 6, group 12. Its relative atomic mass is 200.59 and the molar mass of the atom is 200.59 g/mol.
Atomic number 80
Atomic mass 200.59
Molar mass 200.59 g/mol
Category Transition metal Liquid
Properties of mercury
| Atomic number | 80 |
|---|---|
| Symbol | Hg |
| Latin name | Hydrargyrum |
| Relative atomic mass | 200.59 |
| Molar mass | 200.59 g/mol |
| Group, period, block | 12, 6, d |
| Category | Transition metal |
| State at 20 °C | Liquid |
| Electron configuration | [Xe] 4f¹⁴ 5d¹⁰ 6s² |
| Electronegativity (Pauling) | 2 |
| Atomic radius | 150 pm |
Electron configuration of mercury
Electrons per shell
K2L8M18N32O18P2
Full notation
1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 4f¹⁴ 5s² 5p⁶ 5d¹⁰ 6s²
Noble-gas notation
80 protons · 80 electrons[Xe] 4f¹⁴ 5d¹⁰ 6s²
Formula and compounds of mercury
Simple substanceHgmercuryMolar mass of Hg: 200.59 g/mol
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Frequently asked questions
The relative atomic mass of mercury is 200.59, so the molar mass of the atom is 200.59 g/mol.
Full: 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 4f¹⁴ 5s² 5p⁶ 5d¹⁰ 6s². Noble-gas notation: [Xe] 4f¹⁴ 5d¹⁰ 6s².