Vanadium (V)

From Wikipedia, the free encyclopediaVanadium is a chemical element with symbol V and atomic number 23. It is a hard, silvery grey, ductile and malleable transition metal. The element is found only in chemically combined form in nature, but once isolated artificially, the formation of an oxide layer stabilizes the free metal somewhat against further oxidation.

Vanadium in the periodic table

SymbolV
Atomic number23
Group5
Period4
Blockd
Element categoryTransition Metal

Physical properties

Phase at STPSolid
Density6 g/cm3
Atomic weight50.9415 u
Melting point2183 K
1909.85 °C
3469.73 °F
Boiling point3680 K
3406.85 °C
6164.33 °F

Atomära egenskaper

Electronegativity (Pauling Scale)1.63
Electron affinity50.911 kJ/mol
Ionization energies
1650.9 kJ/mol
2 1414 kJ/mol
3 2830 kJ/mol
4 4507 kJ/mol
5 6298.7 kJ/mol
6 12363 kJ/mol
7 14530 kJ/mol
8 16730 kJ/mol
9 19860 kJ/mol
10 22240 kJ/mol
11 24670 kJ/mol
12 29730 kJ/mol
13 32446 kJ/mol
14 86450 kJ/mol
15 94170 kJ/mol
16 102300 kJ/mol
17 112700 kJ/mol
18 121600 kJ/mol
19 130700 kJ/mol
20 143400 kJ/mol
21 151440 kJ/mol
22 661050 kJ/mol
23 699144 kJ/mol

Electron configuration

Electron configuration1s2 2s2 2p6 3s2 3p6 3d3 4s2
Electrons per shell2, 8, 11, 2

History

Discovered1801
Discovered byAndrés Manuel del Río
Named byIsotopes of vanadium