Bromine vs Meitnerium
| Property | Br Bromine | Mt Meitnerium |
|---|---|---|
| Atomic number | 35 | 109 |
| Symbol | Br | Mt |
| Name | Bromine | Meitnerium |
| Category | halogen | transition-metal |
| Standard Atomic Weight | 79.904 u | 278 u |
| Period | 4 | 7 |
| Group | 17 | 9 |
| Block | p | s |
| Phase at STP | liquid | N/A |
| Electron configuration | [Ar]4s23d104p5 | [Rn]7s25f146d7(calculated) |
| Oxidation states | [-1, 1, 2, 3, 4, 5, 7] | [1, 3, 4, 6, 8, 9] |
| Electronegativity (Pauling) | 2.96 | N/A |
| Electron affinity | 3.3635 eV | 1.7 eV |
| Density | 3102.8 kg/m³ | 3.740000e+4 kg/m³ |
| Melting point | -7.2 °C | -273.15 °C |
| Boiling point | 58.8 °C | -273.15 °C |
| Discovery year | 1825 | 1982 |