Gadolinium (Gd)
Gadolinium (Gd) is element 64 of the periodic table, a lanthanide in period 6, in the f-block. Its standard atomic weight is 157.25, so one mole of gadolinium atoms has a mass of 157.25 g. At room temperature it is a solid; it melts at 1312.85 °C and boils at 3272.85 °C.
| Atomic number | 64 |
|---|---|
| Symbol | Gd |
| Standard atomic weight | 157.25 |
| Molar mass | 157.25 g/mol |
| Category | Lanthanide |
| Group | f-block (lanthanide series) |
| Period | 6 |
| Block | f-block |
| Electron configuration | [Xe] 6s2 4f7 5d1 |
| Oxidation states | +3 |
| Electronegativity (Pauling) | 1.2 |
| Atomic radius (van der Waals) | 237 pm |
| First ionisation energy | 6.15 eV (593.4 kJ/mol) |
| Electron affinity | — |
| State at room temperature | Solid |
| Melting point | 1586 K (1312.85 °C) |
| Boiling point | 3546 K (3272.85 °C) |
| Density | 7.9 g/cm³ |
| Discovered | 1880 |
Lanthanides
La · LanthanumCe · CeriumPr · PraseodymiumNd · NeodymiumPm · PromethiumSm · SamariumEu · EuropiumTb · TerbiumDy · DysprosiumHo · HolmiumEr · ErbiumTm · ThuliumYb · Ytterbium
Calculate with Gadolinium
Atomic weight: IUPAC CIAAW standard atomic weight. Other properties: PubChem (U.S. National Library of Medicine, public domain). Values such as melting point and radius depend on how they were measured; check a data book for precise work.