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Vanadium
Electron Configuration 2,8,11,2
Electron Configuration [Ar] 3d3 4s2
Electronegativity 1.63
Enthalpy of Fusion 17.6 kJ mol-1
Enthalpy of Vaporisation 459.7 kJ mol-1
Heat Capacity 24.89 J mol-1 K-1
Thermal Conductivity 30.7 W m-1 K-1
Thermal Expansion 8.4 μm m-1 K-1
Magnetic ordering No data
Electrical resistivity 197 Ω m
Speed of sound 4560 m s-1
Young's modulus 128 GPa
Shear modulus 4560 GPa
Bulk modulus 160 GPa
Poisson ratio 0.37
Mohs hardness 7.0
Vickers hardness 628 MPa
Brinell hardness 628 MPa
Atomic Radii
Atomic Radius 135 pm
Bohr Radius 171 pm
Covalent Radius 125 pm
Van der Waals 0 pm
Oxidation States
Main V+3, V+4, V+5
Other V-3, V-1, V0, V+1, V+2
Ionisation Energies (kJ mol-1) show graph
M - M+ 650
M+ - M2+ 1414
M2+ - M3+ 2828
M3+ - M4+ 4507
M4+ - M5+ 6294
M5+ - M6+ 12362
M6+ - M7+ 14489
M7+ - M8+ 16760
M8+ - M9+ 19860
M9+ - M10+ 22240