Template:Infobox vanadium

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23 titaniumvanadiumchromium
-

V

Nb
General
Name, symbol, number vanadium, V, 23
Chemical seriestransition metals
Group, period, block 54, d
Appearancesilver-grey metal
File:V,23.jpg
Standard atomic weight 50.9415(1) g·mol−1
Electron configuration [Ar] 3d3 4s2
Electrons per shell 2, 8, 11, 2
Physical properties
Phasesolid
Density (near r.t.)6.0 g·cm−3
Liquid density at m.p.5.5 g·cm−3
Melting point2183 K
(1910 °C, 3470 °F)
Boiling point3680 K
(3407 °C, 6165 °F)
Heat of fusion21.5 kJ·mol−1
Heat of vaporization459 kJ·mol−1
Heat capacity(25 °C) 24.89 J·mol−1·K−1
Vapor pressure
P/Pa 1 10 100 1 k 10 k 100 k
at T/K 2101 2289 2523 2814 3187 3679
Atomic properties
Crystal structurecubic body centered
Oxidation states2, 3, 4, 5
(amphoteric oxide)
Electronegativity1.63 (Pauling scale)
Ionization energies
(more)
1st: 650.9 kJ·mol−1
2nd: 1414 kJ·mol−1
3rd: 2830 kJ·mol−1
Atomic radius135 pm
Atomic radius (calc.)171 pm
Covalent radius125 pm
Miscellaneous
Magnetic orderingparamagnetic
Electrical resistivity(20 °C) 197 nΩ·m
Thermal conductivity(300 K) 30.7 W·m−1·K−1
Thermal expansion(25 °C) 8.4 µm·m−1·K−1
Speed of sound (thin rod)(20 °C) 4560 m/s
Young's modulus128 GPa
Shear modulus47 GPa
Bulk modulus160 GPa
Poisson ratio0.37
Mohs hardness6.7
Vickers hardness628–1500 MPa
Brinell hardness628– MPa
CAS registry number7440-62-2
Selected isotopes
Main article: Isotopes of vanadium
iso NA half-life DM DE (MeV) DP
48V syn 15.9735 d ε+β+ 4.0123 48Ti
49V syn 330 d ε 0.6019 49Ti
50V 0.25% 1.5×1017y ε 2.2083 50Ti
β- 1.0369 50Cr
51V 99.75% V is stable with 28 neutrons
References
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