Germanium
Atomic number:
32
Atomic weight:
72.61
Shells:
2,8,18,4
Orbitals:
[Ar] 3d10 4s2 4p2
Melting point:
937.4°C
Boiling point:
2830°C
Covalent radius:
1.22
Å
Atomic volume:
13.6
cm³/mol
Atomic radius:
1.52
Å
Ionic radius:
.53 (+4)
Å
Electronegativity:
2.01
Oxidation states:
(4),2
1st ionization pot.:
7.900
V
2nd ionization pot.:
15.934
V
3rd ionization pot.:
34.22
V
Specific heat:
0.32
J/gK
Heat of fusion:
36.940
kJ/mol
Heat of vapor.:
330.90
kJ/mol
Thermal conduct.:
0.599
W/cmK
Electrical conduct.:
1.45e-8
10^6/cm ohm
Density:
5.323
g/cm³
Valence:
2,4
