Cerium vs Praseodymium
Pick up to 3 elements and see how they stack up.
| Property | Cerium | Praseodymium |
|---|---|---|
| Atomic number | 58 | 59 |
| Atomic mass | 140.12 | 140.91 |
| Electronegativity | 1.12 | 1.13 |
| Melting point | 1,068 K (794.8 °C) | 1,208 K (934.8 °C) |
| Boiling point | 3,716 K (3,442.8 °C) | 3,793 K (3,519.8 °C) |
| Density | 6.77 g/cm³ | 6.77 g/cm³ |
| Atomic radius | 235 pm | 239 pm |
| Ionization energy | 5.539 eV | 5.464 eV |
| Discovered | 1803 | 1885 |
| Category | Lanthanide | Lanthanide |
| State at room temp. | Solid | Solid |
| Block | f | f |
| Group | — | — |
| Period | 6 | 6 |
| Valence electrons | 2 | 2 |
| Common charges | +3, +4 | +3 |
| Electron configuration | [Xe] 4f1 5d1 6s2 | [Xe] 4f3 6s2 |