| Atomic number |
|
63 |
| Atomic weight | 151.9641 amu |
| Density |
5.243 g/cm3 (STP) |
| Melting | 822 °C |
| Boiling | 1597 °C |
| Covalent radius | Å |
| Van der Waals radius | Å |
| Ionic radius | 0.947 Å |
| First ionization potential | 5.670 eV = 45734 cm-1 = 547.1 kJ/mol
|
| Electron affinity | |
| Electronic configuration | 1s22s22p63s23p63d104s24p64d105s25p66s24f7 |
| Stable isotopes | 151Eu: 47.8%, 153Eu: 52.2% |
|
Wikipedia article about about Europium |