Technical data for Tungsten

Overview
NameTungsten
SymbolW
Atomic Number74
Atomic Weight183.84
Density19.25 g/cm3
Melting Point3422 °C
Boiling Point5555 °C

Thermal properties
PhaseSolid
Melting Point3422 °C
Boiling Point5555 °C
Absolute Melting Point3695 K
Absolute Boiling Point5828 K
Heat of Fusion35 kJ/mol
Heat of Vaporization800 kJ/mol
Heat of CombustionN/A
Specific Heat132 J/(kg K)[note]
Thermal Conductivity170 W/(m K)
Thermal Expansion4.5×10-6 K-1

Bulk physical properties
Density19.25 g/cm3
Density (Liquid)17.6 g/cm3
Molar Volume9.5501×10-6
Brinell Hardness2570 MPa
Mohs Hardness7.5 MPa
Vickers Hardness3430 MPa
Bulk Modulus310 GPa
Shear Modulus161 GPa
Young Modulus411 GPa
Poisson Ratio0.28
Speed of Sound5174 m/s
Thermal Conductivity170 W/(m K)
Thermal Expansion4.5×10-6 K-1

Reactivity
Valence6
Electronegativity2.36
ElectronAffinity78.6 kJ/mol
Ionization Energies
770, 1.7×103 kJ/mol

Health and Safety
Autoignition PointN/A
FlashpointN/A

Classifications
Alternate NamesWolfram
Nams of AllotropesNone
Blockd
Group6
Period6
Electron Configuration[Xe]4f145d46s2
ColorGray
Discovery
1783 in Spain
Gas phaseN/A
CAS NumberCAS7440-33-7

Electrical properties
Electrical TypeConductor
Electrical Conductivity2×107 S/m
Resistivity5×10-8 m Ω
Superconducting Point0.015

Magnetic properties
Magnetic TypeParamagnetic
Curie PointN/A
Mass Magnetic Susceptibility3.9×10-9
Molar Magnetic Susceptibility7.17×10-10
Volume Magnetic Susceptibility0.0000751

Abundances
% in Universe5×10-8%
% in Sun4×10-7%
% in Meteorites0.000012%
% in Earth's Crust0.00011%
% in Oceans1.2×10-8%
% in HumansN/A

Atomic dimensions and structure
Atomic Radius193 pm
Covalent Radius146 pm
Van der Waals RadiusN/A
Crystal StructureBody Centered Cubic
Lattice Angles
π/2, π/2, π/2
Lattice Constants
316.52, 316.52, 316.52 pm
Space Group NameIm_ 3m
Space Group Number229

Nuclear Properties
Half-LifeStable
LifetimeStable
Stable Isotopes
180W, 182W, 183W, 184W, 186W
Isotopic Abundances
180W0.12%
182W26.5%
183W14.31%
184W30.64%
186W28.43%

Notes on the properties of Tungsten:
Specific Heat: Value given for solid phase.