| Element | Gadolinium |
| Symbol | Gd |
| Atomic Number | 64 |
| Molar Mass | 157.25 gmol-1 |
| Electron Configuration | [Xe]4f75d16s2 |
| Normal State | solid metal |
| Density @STP | 7.87 g cm-3 |
| Melting Point | 1313oC |
| Boiling Point | 3273oC |
| Stable Isotopes | 152Gd, 154Gd, 155Gd, 156Gd, 157Gd, 158Gd, 160Gd |
| Atomic Radius | 180 pm |
| Ionic Radius | 97 (3+) pm |
| Electronegativity (Pauling) | 1.2 |
| Ionization Energy (1st) | 593 kJ mol-1 |
| Ionization Energy (2nd) | 1167 kJ mol-1 |
| Ionization Energy (3rd) | 1990 kJ mol-1 |
| Molar Heat Capacity | 37 J K-1mol-1 |
| Standard Molar Entropy | 68.1 J K-1mol-1 |
| Enthalpy of Fusion | 15.5 kJ mol-1 |
| Enthalpy of Vapourization | 311.7 kJ mol-1 |
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