Polonium vs Darmstadtium
| Property | Po Polonium | Ds Darmstadtium |
|---|---|---|
| Atomic number | 84 | 110 |
| Symbol | Po | Ds |
| Name | Polonium | Darmstadtium |
| Category | metalloid | transition-metal |
| Standard Atomic Weight | 209 u | 281 u |
| Period | 6 | 7 |
| Group | 16 | 10 |
| Block | p | s |
| Phase at STP | solid | N/A |
| Electron configuration | [Xe]6s24f145d106p4 | [Rn]7s25f146d8(predicted) |
| Oxidation states | [-2, 2, 4, 5, 6] | [0, 2, 4, 6, 8] |
| Electronegativity (Pauling) | 2 | N/A |
| Electron affinity | 1.9 eV | 1.6 eV |
| Density | 9320 kg/m³ | 3.480000e+4 kg/m³ |
| Melting point | 253.85 °C | -273.15 °C |
| Boiling point | 961.85 °C | -273.15 °C |
| Discovery year | 1898 | 1994 |