Bromine vs Iridium
| Property | Br Bromine | Ir Iridium |
|---|---|---|
| Atomic number | 35 | 77 |
| Symbol | Br | Ir |
| Name | Bromine | Iridium |
| Category | halogen | transition-metal |
| Standard Atomic Weight | 79.904 u | 192.217 u |
| Period | 4 | 6 |
| Group | 17 | 9 |
| Block | p | s |
| Phase at STP | liquid | solid |
| Electron configuration | [Ar]4s23d104p5 | [Xe]6s24f145d7 |
| Oxidation states | [-1, 1, 2, 3, 4, 5, 7] | [-3, -2, -1, 1, 2, 3, 4, 5, 6, 7, 8, 9] |
| Electronegativity (Pauling) | 2.96 | 2.2 |
| Electron affinity | 3.3635 eV | 1.565 eV |
| Density | 3102.8 kg/m³ | 2.256220e+4 kg/m³ |
| Melting point | -7.2 °C | 2445.85 °C |
| Boiling point | 58.8 °C | 4427.85 °C |
| Discovery year | 1825 | 1803 |