Gadolinium vs Radon
| Property | Gd Gadolinium | Rn Radon |
|---|---|---|
| Atomic number | 64 | 86 |
| Symbol | Gd | Rn |
| Name | Gadolinium | Radon |
| Category | lanthanide | noble-gas |
| Standard Atomic Weight | 157.25 u | 222 u |
| Period | 6 | 6 |
| Group | N/A | 18 |
| Block | s | p |
| Phase at STP | solid | gas |
| Electron configuration | [Xe]6s24f75d1 | [Xe]6s24f145d106p6 |
| Oxidation states | [0, 1, 2, 3] | [0, 2, 6] |
| Electronegativity (Pauling) | 1.2 | N/A |
| Electron affinity | 0.132 eV | -0.7 eV |
| Density | 7900 kg/m³ | 9.73 kg/m³ |
| Melting point | 1312.85 °C | -71.15 °C |
| Boiling point | 3272.85 °C | -61.7 °C |
| Discovery year | 1886 | 1900 |