Technical data for Cadmium

Overview
NameCadmium
SymbolCd
Atomic Number48
Atomic Weight112.411
Density8.65 g/cm3
Melting Point321.07 °C
Boiling Point767 °C

Thermal properties
PhaseSolid
Melting Point321.07 °C
Boiling Point767 °C
Absolute Melting Point594.22 K
Absolute Boiling Point1040 K
Heat of Fusion6.3 kJ/mol
Heat of Vaporization100 kJ/mol
Heat of CombustionN/A
Specific Heat230 J/(kg K)[note]
Thermal Conductivity97 W/(m K)
Thermal Expansion0.0000308 K-1

Bulk physical properties
Density8.65 g/cm3
Density (Liquid)7.996 g/cm3
Molar Volume0.000012995
Brinell Hardness203 MPa
Mohs Hardness2 MPa
Bulk Modulus42 GPa
Shear Modulus19 GPa
Young Modulus50 GPa
Poisson Ratio0.3
Speed of Sound2310 m/s
Thermal Conductivity97 W/(m K)
Thermal Expansion0.0000308 K-1

Reactivity
Valence2
Electronegativity1.69
ElectronAffinity0 kJ/mol
Ionization Energies
867.8, 1631.4, 3616 kJ/mol

Health and Safety
Autoignition Point250 °C
FlashpointN/A

Classifications
Alternate NamesNone
Nams of AllotropesNone
Blockd
Group12
Period5
Electron Configuration[Kr]4d105s2
ColorSilver
Discovery
1817 in Germany
Gas phaseN/A
CAS NumberCAS7440-43-9

Electrical properties
Electrical TypeConductor
Electrical Conductivity1.4×107 S/m
Resistivity7×10-8 m Ω
Superconducting Point0.517

Magnetic properties
Magnetic TypeDiamagnetic
Mass Magnetic Susceptibility-2.3×10-9
Molar Magnetic Susceptibility-2.59×10-10
Volume Magnetic Susceptibility-0.0000199

Abundances
% in Universe2×10-7%
% in Sun6×10-7%
% in Meteorites0.000044%
% in Earth's Crust0.000015%
% in Oceans5×10-9%
% in Humans0.00007%

Atomic dimensions and structure
Atomic Radius161 pm
Covalent Radius148 pm
Van der Waals Radius158 pm
Crystal StructureSimple Hexagonal
Lattice Angles
π/2, π/2, 2 π/3
Lattice Constants
297.94, 297.94, 561.86 pm
Space Group NameP63/mmc
Space Group Number194

Nuclear Properties
Half-LifeStable
LifetimeStable
Isotopic Abundances
106Cd1.25%
108Cd0.89%
110Cd12.49%
111Cd12.8%
112Cd24.13%
113Cd12.22%
114Cd28.73%
116Cd7.49%

Notes on the properties of Cadmium:
Specific Heat: Value given for solid gamma form.