64Gd157.25
Gadolinium
Lanthanide
Solid at STP
Period 6Block FDiscovered 1880
[Xe]6s2 4f7 5d1
Gadolinium is a chemical element with symbol Gd and atomic number 64. It is a silvery-white, malleable and ductile rare-earth metal. It is found in nature only in combined (salt) form.
📖 Read more on Wikipedia →Atomic Properties
| Atomic Number | 64 |
| Atomic Mass | 157.25 u |
| Electron Configuration | [Xe]6s2 4f7 5d1 |
| Oxidation States | +3 |
| Electronegativity | 1.2 (Pauling) |
| Atomic Radius | 237 pm |
| Ionization Energy | 6.15 eV |
| Block | F |
Physical Properties
| Appearance | silvery white |
| Standard State | Solid |
| Melting Point | 1586 K (1312.8 °C) |
| Boiling Point | 3546 K (3272.8 °C) |
| Density | 7.9 g/cm³ |
| Molar Heat | 37.03 J/(mol·K) |
| CPK Color | #45FFC7 |
Classification
| Category | Lanthanide |
| Group Block | Lanthanide |
| Period | 6 |
| Block | F |
Discovery
| Year Discovered | 1880 |
| Discovered By | Jean Charles Galissard de Marignac |
| Electron Shells | 2, 8, 18, 25, 9, 2 |