Mercury (Hg) — Element 80: Properties & Data | Aladdin Scientific
Mercury(Hg) — Element 80
Mercury (Hg) is a transition metal with atomic number 80 and atomic mass 200.59. It has melting point 234.32 K (-39 °C), boiling point 629.88 K (357 °C), density 13.5336 g/cm³. It sits in group 12 and period 6 of the periodic table and has been known since antiquity.
Key facts
| Atomic mass | 200.5900 u |
|---|---|
| Electron configuration | [Xe]6s2 4f14 5d10 |
| Oxidation states | +2, +1 |
| Electronegativity (Pauling) | 2 |
| Atomic radius (van der Waals) | 209 pm |
| Ionization energy | 10.438 eV |
| Melting point | 234.32 K |
| Boiling point | 629.88 K |
| Density | 13.5336 g/cm³ |
| Standard state | Liquid |
| Year discovered | Ancient |
Frequently asked questions
What is the electron configuration of mercury?
The ground-state electron configuration of mercury is [Xe]6s2 4f14 5d10.
What group and period is mercury in?
Mercury (Hg) is in group 12 and period 6 of the periodic table, classified as a transition metal.
What is the melting point of mercury?
Mercury melts at 234.32 K (-39 °C).
What is the standard state of mercury?
Mercury is a liquid at standard temperature and pressure.
Related elements
About this data: property values compiled from IUPAC Standard Atomic Weights (2021), the NIST Atomic Spectra Database, and PubChem. Curated by the Aladdin Scientific technical team. Last reviewed: .