Mercury

Document v1 · published by Koskamo · updated 2026-10-04

Mercury (Hg) is chemical element 80, a transition metal in group 12, period 6 (PubChem).

Atomic number: 80
Symbol: Hg
Group: 12
Period: 6
Atomic mass: 200.59 u
Electron configuration: [Xe]6s2 4f14 5d10
Electronegativity (Pauling scale): 2
Atomic radius (van der Waals): 209 pm
Ionization energy: 10.438 eV
Oxidation states: +2, +1
Standard state: Liquid
Melting point: 234.32 K
Boiling point: 629.88 K
Density: 13.5336 g/cm³
Chemical group: Transition metal
Year discovered: Ancient

Source and provenance

Original source: pubchem.ncbi.nlm.nih.gov
Published on Koskamo by: Koskamo
Citation version: Document v1
Reuse: PubChem periodic table data (NIH/NLM, pubchem.ncbi.nlm.nih.gov/ptable); group and period from Jefferson Lab via PubChem

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Version history

Published by Koskamo2026-10-04
Version 1