Iodine vs Meitnerium
| Property | I Iodine | Mt Meitnerium |
|---|---|---|
| Atomic number | 53 | 109 |
| Symbol | I | Mt |
| Name | Iodine | Meitnerium |
| Category | halogen | transition-metal |
| Standard Atomic Weight | 126.90447 u | 278 u |
| Period | 5 | 7 |
| Group | 17 | 9 |
| Block | p | s |
| Phase at STP | solid | N/A |
| Electron configuration | [Kr]5s24d105p5 | [Rn]7s25f146d7(calculated) |
| Oxidation states | [-1, 1, 2, 3, 4, 5, 6, 7] | [1, 3, 4, 6, 8, 9] |
| Electronegativity (Pauling) | 2.66 | N/A |
| Electron affinity | 3.059 eV | 1.7 eV |
| Density | 4930 kg/m³ | 3.740000e+4 kg/m³ |
| Melting point | 113.7 °C | -273.15 °C |
| Boiling point | 184.4 °C | -273.15 °C |
| Discovery year | 1811 | 1982 |