| Attribute | Value |
|---|---|
| Symbol | Gd |
| Standard state | Solid |
| Atomic mass | 157.2 u |
| Electron configuration | [Xe]6s²4f⁷5d¹ |
| Oxidation states |
|
| Electronegativity (pauling scale) | 1.2 |
| Atomic radius (van der waals) | 237 pm |
| Ionization energy | 6.15 eV |
| Melting point | 1586 K |
| Boiling point | 3546 K |
| Density | 7.9 g/cm³ |
| Atomic number | 64 |
| Group name | Lanthanide |
| Discovered | 1880 year |
| Electron affinity | Add |