Zirconium vs Radon
| Property | Zr Zirconium | Rn Radon |
|---|---|---|
| Atomic number | 40 | 86 |
| Symbol | Zr | Rn |
| Name | Zirconium | Radon |
| Category | transition-metal | noble-gas |
| Standard Atomic Weight | 91.224 u | 222 u |
| Period | 5 | 6 |
| Group | 4 | 18 |
| Block | s | p |
| Phase at STP | solid | gas |
| Electron configuration | [Kr]5s24d2 | [Xe]6s24f145d106p6 |
| Oxidation states | [1, 2, 3, 4] | [0, 2, 6] |
| Electronegativity (Pauling) | 1.33 | N/A |
| Electron affinity | 0.426 eV | -0.7 eV |
| Density | 6520 kg/m³ | 9.73 kg/m³ |
| Melting point | 1854.85 °C | -71.15 °C |
| Boiling point | 4408.85 °C | -61.7 °C |
| Discovery year | 1789 | 1900 |