Germanium vs Arsenic
| Property | Ge Germanium | As Arsenic |
|---|---|---|
| Atomic number | 32 | 33 |
| Symbol | Ge | As |
| Name | Germanium | Arsenic |
| Category | metalloid | metalloid |
| Standard Atomic Weight | 72.63 u | 74.921595 u |
| Period | 4 | 4 |
| Group | 14 | 15 |
| Block | p | p |
| Phase at STP | solid | solid |
| Electron configuration | [Ar]4s23d104p2 | [Ar]4s23d104p3 |
| Oxidation states | [-4, -3, -2, -1, 0, 1, 2, 3, 4] | [-3, -2, -1, 0, 1, 2, 3, 4, 5] |
| Electronegativity (Pauling) | 2.01 | 2.18 |
| Electron affinity | 1.232 eV | 0.81 eV |
| Density | 5323.4 kg/m³ | 5776 kg/m³ |
| Melting point | 938.25 °C | 816.85 °C |
| Boiling point | 2832.85 °C | 613.85 °C |
| Discovery year | 1886 | 1250 |