Elements / 63
63Eu151.96
Europium
Lanthanide · f-block · ring P
Europium is element 63, 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 | 5.26 g/cm³ | Terrain → |
|---|---|---|
| Melting point | 1,099 K · 826 °C | Terrain → |
| Boiling point | 1,802 K · 1,529 °C | Terrain → |
| Electronegativity | 1.20 | Terrain → |
| First ionization energy | 547 kJ/mol | Terrain → |
| Atomic weight | 151.964 u | Terrain → |
| Crustal abundance | 2 ppm | Terrain → |
| Discovered | 1896 | 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
- Rock samples brought back from the Moon held it in much higher concentrations than expected.
- Banknote counting machines spot forgeries by its absence; its name comes from the same source as a currency.
Checked against edu.rsc.org.
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 Europium
Watch it fly into its seat, or raise the whole spiral into a landscape and see where it peaks.