32 - Germanium metalloid
Discovered by Clemens Winkler in 1886
- 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.
Shell | Electrons | Orbitals |
---|---|---|
1 | 2 | 2 in 1s |
2 | 8 | 2 in 2s + 6 in 2p |
3 | 18 | 2 in 3s + 6 in 3p + 10 in 3d |
4 | 4 | 2 in 4s + 2 in 4p |
72.63 u
Atomic Mass
1.5 Å
Atomic Radius
3106 K
Boiling Point
1.2 Å
Covalent Radius
5.32 g/cm³
Density
118.94
Electron Affinity
2.01
Electronegativity
7.9 eV
First Ionization Energy
1211.45 K
Melting Point
4
Number of Shells
4
Electron Valency
32
Atomic Number
2, 8, 18, 4
Electron Shell Occupations
0.32 J/(g K)
Specific Heat