← Back to the periodic table
Germanium
Metalloids · Group 14 · Period 4
Atomic properties
| Atomic number | 32 |
|---|---|
| Symbol | Ge |
| Standard atomic weight | 72.630 |
| Classification | Metalloids |
| Group | 14 |
| Period | 4 |
| Block | p-block |
| Electron configuration | [Ar] 3d10 4s2 4p2 |
| Electronegativity (Pauling) | 2.01 |
| Common oxidation states | +4, +2 |
Physical properties
| Phase at 20 °C | Solid |
|---|---|
| Density | 5.323 g/cm³ |
| Melting point | 938.25 °C |
| Boiling point | 2833 °C |
| Discovered | 1886 |
| CAS number | — |