Antimony vs Radon
| Property | Sb Antimony | Rn Radon |
|---|---|---|
| Atomic number | 51 | 86 |
| Symbol | Sb | Rn |
| Name | Antimony | Radon |
| Category | metalloid | noble-gas |
| Standard Atomic Weight | 121.76 u | 222 u |
| Period | 5 | 6 |
| Group | 15 | 18 |
| Block | p | p |
| Phase at STP | solid | gas |
| Electron configuration | [Kr]5s24d105p3 | [Xe]6s24f145d106p6 |
| Oxidation states | [-3, -2, -1, 0, 1, 2, 3, 4, 5] | [0, 2, 6] |
| Electronegativity (Pauling) | 2.05 | N/A |
| Electron affinity | 1.07 eV | -0.7 eV |
| Density | 6685 kg/m³ | 9.73 kg/m³ |
| Melting point | 630.63 °C | -71.15 °C |
| Boiling point | 1586.85 °C | -61.7 °C |
| Discovery year | 1707 | 1900 |