Elements / 64
64Gd157.25
Gadolinium
Lanthanide · f-block · ring P
Gadolinium is element 64, a lanthanide. It is one of the lanthanides, which the spiral keeps in line on ring P instead of exiling them to a strip below the table.
Properties
| Density | 7.9 g/cm³ | Terrain → |
|---|---|---|
| Melting point | 1,585 K · 1,312 °C | Terrain → |
| Boiling point | 3,273 K · 3,000 °C | Terrain → |
| Electronegativity | 1.20 | Terrain → |
| First ionization energy | 593 kJ/mol | Terrain → |
| Atomic weight | 157.253 u | Terrain → |
| Crustal abundance | 6.2 ppm | Terrain → |
| Discovered | 1880 | Terrain → |
Values from open reference data; see sources. "Terrain" opens that property as a 3D landscape across the whole spiral.
Two things you might not know
- Its Curie point is 293 K, about 20 degrees C, so it turns ferromagnetic when cooled just below room temperature.
- Water-soluble chelates of it serve as MRI contrast agents; its name honors a Finnish chemist via a mineral.
Checked against britannica.com.
Lanthanides
- La Lanthanum
- Ce Cerium
- Pr Praseodymium
- Nd Neodymium
- Pm Promethium
- Sm Samarium
- Eu Europium
- Gd Gadolinium
- Tb Terbium
- Dy Dysprosium
- Ho Holmium
- Er Erbium
- Tm Thulium
- Yb Ytterbium
Ring P (period 6)
Play with Gadolinium
Watch it fly into its seat, or raise the whole spiral into a landscape and see where it peaks.