Ge
Germanium
Z 32 72.63 g/molMetalloid
Nucleus
32 Protons
41 Neutrons
32 Electrons (4 Valence)
Shell distribution: K2 • L8 • M18 • N4 • O0 • P0 • Q0
Electron Configuration
Energy
7p
6d
5f
7s
6p
5d
4f
6s
5p
4d
5s
4p
3d
4s
3p
3s
2p
2s
1s
[Ar]3d104s24p2
Oxidation States
CommonRare
0
Pick a state to see its ions
Radii
Empirical
125 pm1.25 Å
Calculated
125 pm1.25 Å
Covalent
120±4 pm1.2±0.04 Å
Van der Waals
211 pm2.11 Å
IonicGe2+
73 pm0.73 Å
Crystal Structure
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DiamondStandard state
Pearson symbol
cF8
Space group
Fd3m No. 227
Density
5.323 g/cm³