Lead vs Copernicium
| Property | Pb Lead | Cn Copernicium |
|---|---|---|
| Atomic number | 82 | 112 |
| Symbol | Pb | Cn |
| Name | Lead | Copernicium |
| Category | post-transition-metal | transition-metal |
| Standard Atomic Weight | 207.2 u | 285 u |
| Period | 6 | 7 |
| Group | 14 | 12 |
| Block | p | s |
| Phase at STP | solid | gas |
| Electron configuration | [Xe]6s24f145d106p2 | [Rn] 7s2 5f14 6d10(predicted) |
| Oxidation states | [-4, -2, -1, 0, 1, 2, 3, 4] | [2, 4] |
| Electronegativity (Pauling) | 2.33 | N/A |
| Electron affinity | 0.364 eV | -0.8 eV |
| Density | 1.134200e+4 kg/m³ | 1.400000e+4 kg/m³ |
| Melting point | 327.46 °C | -273.15 °C |
| Boiling point | 1748.85 °C | -165.15 °C |
| Discovery year | 2021 | 1996 |