| Germanium | |
| Elemental State | Ge |
| Electron Configuration | 1s22s22p63s23p63d104s24p2 |
| First Ionization Potential | 7.899 eV |
| Electron Affinity | 1.233 eV |
| Z* | 6.780 (Clementi-Raimondi) |
| Pauling Electronegativity | 2.01 |
| Covalent Radius | 1.22 Å |
| Metallic Radius | 1.39 Å |
| Ionic Radius | 0.87 Å Ge2+ coordination number
= 6
0.530 Å Ge4+ coordination number = 4 0.670 Å Ge4+ coordination number = 6 |
| van der Waal's Radius | |
| Melting Point | 938.25 oC |
| Boiling Point | 2833 oC |
| Density | 5.323 g/cm3 |
| Other Properties | |