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
