Mercury

Transition metal · 200.59 u · group 12, period 6

Mercury · Hg

Atomic number80

SymbolHg

CategoryTransition metal

Standard stateLiquid

Group · Period · Block12 · 6 · d

Electron configuration[Xe]6s2 4f14 5d10

Atomic mass200.59 u

Atomic radius209 pm

Protons / Neutrons / Electrons80 / 121 / 80

Shells (e⁻ per shell)2, 8, 18, 32, 18, 2

Electronegativity (Pauling)2

Ionization energy10.438 eV

Electron affinity—

Oxidation states+2, +1

Melting point234.3 K · -38.8 °C

Boiling point629.9 K · 356.7 °C

Density13.5336 g/cm³

Year discoveredAncient

CPK color

#B8B8D0

State at room temp (25 °C)

liquid

Position

1 in library