Mercury (Hg) - Element 80 | Properties & Electron Configuration
What is Mercury?
Mercury (Hg) is element 80, a transition metal in period 6, group 12. Its electron configuration is 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 4f¹⁴ 5s² 5p⁶ 5d¹⁰ 6s².
| Atomic Number | 80 |
| Symbol | Hg |
| Atomic Mass | 200.59 u |
| Category | Transition Metal |
| Period | 6 |
| Group | 12 |
| Block | d |
| Electron Configuration | 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 4f¹⁴ 5s² 5p⁶ 5d¹⁰ 6s² |
| Short Config | [Xe] 4f¹⁴ 5d¹⁰ 6s² |
| Electronegativity | 2 |
| Atomic Radius | 150 pm |
| Ionization Energy | 1007 kJ/mol |
| Electron Affinity | N/A |
| Phase (STP) | Liquid |
Electron Configuration
The full electron configuration of Mercury is 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 4f¹⁴ 5s² 5p⁶ 5d¹⁰ 6s². In noble gas shorthand, this is written as [Xe] 4f¹⁴ 5d¹⁰ 6s².
Mercury is a d-block element in group 12, period 6.
Periodic Trends
Electronegativity: Mercury has a Pauling electronegativity of 2. Within group 12, electronegativity generally decreases down the group.
Atomic Radius: 150 pm. Across period 6, atomic radius generally decreases left to right as nuclear charge increases.
Ionization Energy: 1007 kJ/mol. Ionization energy generally increases across a period and decreases down a group.
View all 118 elements with trend overlays for electronegativity, atomic radius, ionization energy, and electron affinity.
Explore Mercury on the Interactive Periodic TableRelated Topics
Zinc (Zn)
Properties of Zinc - same group as Mercury
Cadmium (Cd)
Properties of Cadmium - same group as Mercury
Copernicium (Cn)
Properties of Copernicium - same group as Mercury
Cesium (Cs)
Properties of Cesium - same period as Mercury
Barium (Ba)
Properties of Barium - same period as Mercury
Lanthanum (La)
Properties of Lanthanum - same period as Mercury