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Atomic Number	80

Atomic Symbol	Hg

Atomic Weight	200.59 amu

Group	Transition, 13

Form	Liquid

Density @ STP	13.5336 g/cm³

Melting Point	-38.83 °C (-37.89 °F, 234.32 °K)

Boiling Point	356.73 °C (674.11 °F, 629.88 °K)

Heat of Fusion	2.29 kJ/mol

Heat of Vaporization	59.2 kJ/mol

First Ionization Potential	10.43750 eV

Electronegativity (on Pauling scale	1.9

Specific Heat Capacity	0.140 J/g K

Ground State Electron Configuration	5d¹⁰ 6s²

Oxidation State(s)	+1, +2

Stable Isotopes and Natural Abundance on Earth	¹⁹⁶Hg, 0.15%; ¹⁹⁸Hg, 9.97%; ¹⁹⁹Hg, 16.87%; ²⁰⁰Hg, 23.10%; ²⁰¹Hg, 13.18%; ²⁰²Hg, 29.86%; ²⁰⁴Hg, 6.87%

Selected Radioisotopes	¹⁹⁴Hg, ¹⁹⁷Hg

Atomic Radius	171 pm

Crystal Structure	Rhombohedral