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 |
|
