Iridium vs Livermorium
| Property | Ir Iridium | Lv Livermorium |
|---|---|---|
| Atomic number | 77 | 116 |
| Symbol | Ir | Lv |
| Name | Iridium | Livermorium |
| Category | transition-metal | post-transition-metal |
| Standard Atomic Weight | 192.217 u | 293 u |
| Period | 6 | 7 |
| Group | 9 | 16 |
| Block | s | p |
| Phase at STP | solid | solid |
| Electron configuration | [Xe]6s24f145d7 | [Rn] 7s2 7p4 5f14 6d10(predicted) |
| Oxidation states | [-3, -2, -1, 1, 2, 3, 4, 5, 6, 7, 8, 9] | [-2, 2, 4] |
| Electronegativity (Pauling) | 2.2 | N/A |
| Electron affinity | 1.565 eV | 0.7 eV |
| Density | 2.256220e+4 kg/m³ | 1.290000e+4 kg/m³ |
| Melting point | 2445.85 °C | 506.85 °C |
| Boiling point | 4427.85 °C | 861.85 °C |
| Discovery year | 1803 | 2000 |