Iron
| Atomic number: |
26 |
|
Atomic weight: |
55.847 |
|
| Shells: |
2,8,14,2 |
|
Orbitals: |
[Ar] 3d6 4s2 |
|
| Melting point: |
1535°C |
|
Boiling point: |
2861°C |
|
| Covalent radius: |
1.17 |
Å |
Atomic volume: |
7.1 |
cm³/mol |
| Atomic radius: |
1.72 |
Å |
Ionic radius: |
.55 (+3) |
Å |
| Electronegativity: |
1.83 |
|
Oxidation states: |
2,(3) |
|
| 1st ionization pot.: |
7.9024 |
V |
2nd ionization pot.: |
16.18 |
V |
| 3rd ionization pot.: |
30.651 |
V |
Specific heat: |
0.44 |
J/gK |
| Heat of fusion: |
13.80 |
kJ/mol |
Heat of vapor.: |
349.60 |
kJ/mol |
| Thermal conduct.: |
0.802 |
W/cmK |
Electrical conduct.: |
0.0993 |
10^6/cm ohm |
| Density: |
7.86 |
g/cm³ |
Valence: |
2,3,4,6 |
|
