Samarium vs Europium
Pick up to 3 elements and see how they stack up.
| Property | Samarium | Europium |
|---|---|---|
| Atomic number | 62 | 63 |
| Atomic mass | 150.36 | 151.96 |
| Electronegativity | 1.17 | 1.2 |
| Melting point | 1,345 K (1,071.8 °C) | 1,099 K (825.8 °C) |
| Boiling point | 2,067 K (1,793.8 °C) | 1,802 K (1,528.8 °C) |
| Density | 7.52 g/cm³ | 5.264 g/cm³ |
| Atomic radius | 229 pm | 233 pm |
| Ionization energy | 5.644 eV | 5.67 eV |
| Discovered | 1879 | 1901 |
| Category | Lanthanide | Lanthanide |
| State at room temp. | Solid | Solid |
| Block | f | f |
| Group | — | — |
| Period | 6 | 6 |
| Valence electrons | 2 | 2 |
| Common charges | +2, +3 | +2, +3 |
| Electron configuration | [Xe] 4f6 6s2 | [Xe] 4f7 6s2 |