Chlorine vs Gallium
| Property | Cl Chlorine | Ga Gallium |
|---|---|---|
| Atomic number | 17 | 31 |
| Symbol | Cl | Ga |
| Name | Chlorine | Gallium |
| Category | halogen | post-transition-metal |
| Standard Atomic Weight | 35.4515 u | 69.723 u |
| Period | 3 | 4 |
| Group | 17 | 13 |
| Block | p | p |
| Phase at STP | gas | solid |
| Electron configuration | [Ne]3s23p5 | [Ar]4s23d104p1 |
| Oxidation states | [-1, 1, 2, 3, 4, 5, 6, 7] | [-5, -4, -3, -2, -1, 0, 1, 2, 3] |
| Electronegativity (Pauling) | 3.16 | 1.81 |
| Electron affinity | 3.6127 eV | 0.3 eV |
| Density | 3.214 kg/m³ | 5910 kg/m³ |
| Melting point | -101.5 °C | 29.76 °C |
| Boiling point | -34.04 °C | 2203.85 °C |
| Discovery year | 1774 | 1875 |