Technical data for Mercury

Overview
NameMercury
SymbolHg
Atomic Number80
Atomic Weight200.59
Density13.534 g/cm3
Melting Point-38.83 °C
Boiling Point356.73 °C

Thermal properties
PhaseLiquid
Melting Point-38.83 °C
Boiling Point356.73 °C
Absolute Melting Point234.32 K
Absolute Boiling Point629.88 K
Critical Presure172 MPa (1698 Atm)
Critical Temperature1750 K
Heat of Fusion2.29 kJ/mol
Heat of Vaporization59.2 kJ/mol
Heat of CombustionN/A
Specific Heat139.5 J/(kg K)[note]
Thermal Conductivity8.3 W/(m K)
Thermal ExpansionN/A

Bulk physical properties
Density13.534 g/cm3
Density (Liquid)13.534 g/cm3[note]
Molar Volume0.0000148212
Bulk Modulus25 GPa
Refractive Index1.000933
Speed of Sound1407 m/s
Thermal Conductivity8.3 W/(m K)
Thermal ExpansionN/A

Reactivity
Valence2
Electronegativity2
ElectronAffinity0 kJ/mol
Ionization Energies
1007.1, 1810, 3.3×103 kJ/mol

Health and Safety
Autoignition PointN/A
FlashpointN/A

Classifications
Alternate NamesHydrargyrum
Nams of AllotropesNone
Blockd
Group12
Period6
Electron Configuration[Xe]4f145d106s2
ColorSilver
Discovery
1500 BC
Gas phaseN/A
CAS NumberCAS7439-97-6

Electrical properties
Electrical TypeConductor
Electrical Conductivity1×106 S/m
Resistivity9.6×10-7 m Ω
Superconducting Point4.154

Magnetic properties
Magnetic TypeDiamagnetic
Curie PointN/A
Mass Magnetic Susceptibility-2.1×10-9
Molar Magnetic Susceptibility-4.21×10-10
Volume Magnetic Susceptibility-0.0000284

Abundances
% in Universe1×10-7%
% in Sun2×10-6%
% in Meteorites0.000025%
% in Earth's Crust6.7×10-6%
% in Oceans5×10-9%
% in HumansN/A

Atomic dimensions and structure
Atomic Radius171 pm
Covalent Radius149 pm
Van der Waals Radius155 pm
Crystal StructureSimple Trigonal
Lattice Angles
1.23081, 1.23081, 1.23081
Lattice Constants
300.5, 300.5, 300.5 pm
Space Group NameR_ 3m
Space Group Number166

Nuclear Properties
Half-LifeStable
LifetimeStable
Stable Isotopes
196Hg, 198Hg, 199Hg, 200Hg, 201Hg, 202Hg, 204Hg
Isotopic Abundances
196Hg0.15%
198Hg9.97%
199Hg16.87%
200Hg23.1%
201Hg13.18%
202Hg29.86%
204Hg6.87%

Notes on the properties of Mercury:
Liquid Density: Value given at STP.
Specific Heat: Value given for liquid phase.