Germanium

Ge Germanium Metal

 

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