Dubnium vs Copernicium
| Property | Db Dubnium | Cn Copernicium |
|---|---|---|
| Atomic number | 105 | 112 |
| Symbol | Db | Cn |
| Name | Dubnium | Copernicium |
| Category | transition-metal | transition-metal |
| Standard Atomic Weight | 268 u | 285 u |
| Period | 7 | 7 |
| Group | 5 | 12 |
| Block | s | s |
| Phase at STP | N/A | gas |
| Electron configuration | [Rn]7s25f146d3 | [Rn] 7s2 5f14 6d10(predicted) |
| Oxidation states | [3, 4, 5] | [2, 4] |
| Electronegativity (Pauling) | N/A | N/A |
| Electron affinity | 0.56 eV | -0.8 eV |
| Density | 2.930000e+4 kg/m³ | 1.400000e+4 kg/m³ |
| Melting point | -273.15 °C | -273.15 °C |
| Boiling point | -273.15 °C | -165.15 °C |
| Discovery year | 1967 | 1996 |