Gadolinium
Lanthanide · atomic number 64
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GdGadolinium
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.
Properties of Gadolinium
| Element category | Lanthanide |
|---|---|
| Atomic number | 64 |
| Atomic mass | 157.253 u |
| Phase at STP | Solid |
| Group | 3 |
| Period | 6 |
| Block | f |
| Electron configuration | [Xe] 4f7 5d1 6s2 |
| Electrons per shell | 2, 8, 18, 25, 9, 2 |
| Electronegativity (Pauling) | 1.2 |
| Melting point | 1585 K (1312 °C) |
| Boiling point | 3273 K (3000 °C) |
| Density | 7.9 g/cm3 |
| Discovered by | Jean Charles Galissard de Marignac |
← Europium · Periodic table · Terbium → Tb
About the lanthanide group
The rare-earth “inner transition” metals that give strong permanent magnets, screen phosphors and catalyst polish.
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