Germanium (Ge)
Germanium
Germanium (Ge) is a metalloid in period 4, group 14. Its relative atomic mass is 72.63 and the molar mass of the atom is 72.63 g/mol.
Atomic number 32
Atomic mass 72.63
Molar mass 72.63 g/mol
Category Metalloid Solid
Properties of germanium
| Atomic number | 32 |
|---|---|
| Symbol | Ge |
| Latin name | Germanium |
| Relative atomic mass | 72.63 |
| Molar mass | 72.63 g/mol |
| Group, period, block | 14, 4, p |
| Category | Metalloid |
| State at 20 °C | Solid |
| Electron configuration | [Ar] 3d¹⁰ 4s² 4p² |
| Electronegativity (Pauling) | 2.01 |
| Atomic radius | 125 pm |
Electron configuration of germanium
Electrons per shell
K2L8M18N4
Full notation
1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p²
Noble-gas notation
32 protons · 32 electrons[Ar] 3d¹⁰ 4s² 4p²
Formula and compounds of germanium
Simple substanceGegermaniumMolar mass of Ge: 72.63 g/mol
Chemistry not clicking? Try a lesson with a tutor
1-to-1 online chemistry lessons for KS3, GCSE and A-level. Your first lesson is a free trial.
Frequently asked questions
The relative atomic mass of germanium is 72.63, so the molar mass of the atom is 72.63 g/mol.
Full: 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p². Noble-gas notation: [Ar] 3d¹⁰ 4s² 4p².