- Atomic Radius (Å)
Germanium is a chemical element with symbol Ge and atomic number 32. It is a lustrous, hard, grayish-white metalloid in the carbon group, chemically similar to its group neighbors tin and silicon. Purified germanium is a semiconductor, with an appearance most similar to elemental silicon.
32
Atomic Number
72.63 u
Atomic Mass
1211.45 K
Melting Point
3106 K
Boiling Point
5.32 g/cm³
Density
1.5 Å
Atomic Radius
1.2 Å
Covalent Radius
2.01
Electronegativity
7.9 eV
First Ionization Energy
118.94
Electron Affinity
4
Number of Shells
4
Electron Valency
2, 8, 18, 4
Electron Shell Occupations
0.32 J/g
Specific Heat