Relative atomic mass: 50.9415 +- 0.0001

English: Vanadium
French: Vanadium
Croatian: Vanadij
German: Vanadium
Italian: Vanadio
Spanish: Vanadio

Atomic number: 23
Group numbers: 5
Period: 4
Standard state (20 oC): solid

Discovery: 1801 Andres Manuel del Rio (MX)
Vanadium was discovered by Andres Manuel del Rio (MX) in 1801 and rediscovered by Nils Gabriel Sefstrom (SE) in 1830. Named after Vanadis, the goddess of beauty in Scandinavian mythology. It is a soft, ductile, silvery-white metal, resistant to corrosion by moisture, air and most acids and alkalis at room temperature. Exposed surfaces form oxide coating. It reacts with concentrated acids. Vanadium is 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. It is mixed with other metals to make very strong and durable alloys. Vanadium pentoxide (V2O5) is used as a catalyst, dye and fixer-fixer. The price of 99.7 % pure vanadium granules is 299.90 for 250 g.
Electronic configuration: [Ar] 3d3 4s2
Formal oxidation number: +2 +3 +4 +5
Atomic radius: 131.1 pm

Electronegativities: 1.63
Thermal conductivity: 30.7 W/(m K)
Electrical resistivity (20 oC): 19.68 microOhm cm

Melting point: 1910 oC
Boiling point: 3407 oC

Heat of fusion: 17.6 kJ/mol
Heat of vaporization: 459.7 kJ/mol
Heat of atomization: 510.95 kJ/mol

22Ti <= 23V => 24Cr

ASCII Periodic Table of the Elements
6 Jan. 2020
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