- 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
Atomic Mass (u)
1211.45
Melting Point (K)
3106
Boiling Point (K)
5.32
Density (solid: g/cm³, gas: g/liter)
1.5
Atomic Radius (Å)
1.2
Covalent Radius (Å)
2.01
Electronegativity
7.9
First Ionization Energy (eV)
118.94
Electron Affinity
4
Number of Shells
4
Electron Valency
2, 8, 18, 4
Electron Shell Occupations
0.32
Specific Heat (J/g)