Chromium
Cr
Chromium
Transition Metal
Atomic number:
24
Atomic weight:
51.9961
Shells:
2,8,13,1
Orbitals:
[Ar] 3d5 4s1
Melting point:
1857°C
Boiling point:
2672°C
Covalent radius:
1.18
Å
Atomic volume:
7.23
cm³/mol
Atomic radius:
1.85
Å
Ionic radius:
.62 (+3)
Å
Electronegativity:
1.66
Oxidation states:
6,(3),2
1st ionization pot.:
6.7666
V
2nd ionization pot.:
16.50
V
3rd ionization pot.:
30.96
V
Specific heat:
0.45
J/gK
Heat of fusion:
16.90
kJ/mol
Heat of vapor.:
344.30
kJ/mol
Thermal conduct.:
0.937
W/cmK
Electrical conduct.:
0.0774
10^6/cm ohm
Density:
7.19
g/cm³
Valence:
2,3,6
