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Vanadium metal Solid
Symbol: V
Atomic number: 23
Atomic mass: 50.9415
Group: Transition Metal
CAS-number: 7440-62-2

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Physical data

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Thermal data

 

Steric data

Shells: 2,8,11,2
Orbitals: [Ar] 3d3 4s2
Electronegativity: 1.4, 1.6
1. Ionization potential: 6.7463 eV
2. Ionization potential: 14.65 eV
3. Ionization potential: 29.31 eV
Oxidation states: 5,4,3,2,0
Electrical conductivity: 0.0489 10^6
Melting point: 1890 °C ±10
Boiling point: 3407 °C
Specific heat: 0.49 J/gK
Heat of fusion: 20.90 kJ/mol
Heat of vaporization: 0.452 kJ/mol
Thermal conductivity: 0.307 W/cmK
Atomic radius: 1.92 Å
Ionic radius: 0.54 Å ()
Covalent radius: 1.22 Å
Atomic volume: 8.78 cm³/mol
Density (293 K): 5.8 g/cm³
Crystal structure: Cubic: Body centered
Cubic: Body centered
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Isotopes

NuclideAbundance [%]MassSpinHalflifeDecay modeDecay tree
48V047.952415.98dBeta+,ECView
49V048.9487/2337dECView
50V0.2549.947261.4E17yEC,Beta-View
51V99.7550.9447/2--stable--
52V05233.76mBeta-View
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Other info

Name origin:From Scandinavian goddess, Vanadis
Description:Soft, ductile, silvery-white metal. Resistant to corrosion by moisture, air and most acids and alkalis at room temperature.
Discovered by:Nils Sefström
Year:1830
Place:Sweden
Sources:Found in the minerals patronite (VS4), vanadinite [Pb5(VO4)3Cl], and carnotite [K2(UO2)2(VO4)2.3H2O]. Pure metal produced by heating with C and Cl to produce VCl3 which is heated with Mg in Ar atmosphere.
Use(s):It is mixed with other metals to make very strong and durable alloys. Vanadium pentoxide (V2O5) is used as a catalyst, dye and color-fixer.
 
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