Lutetium vs Hafnium
Pick up to 3 elements and see how they stack up.
| Property | Lutetium | Hafnium |
|---|---|---|
| Atomic number | 71 | 72 |
| Atomic mass | 174.97 | 178.49 |
| Electronegativity | 1.27 | 1.3 |
| Melting point | 1,925 K (1,651.8 °C) | 2,506 K (2,232.8 °C) |
| Boiling point | 3,675 K (3,401.8 °C) | 4,876 K (4,602.8 °C) |
| Density | 9.841 g/cm³ | 13.31 g/cm³ |
| Atomic radius | 221 pm | 212 pm |
| Ionization energy | 5.426 eV | 6.825 eV |
| Discovered | 1907 | 1923 |
| Category | Lanthanide | Transition metal |
| State at room temp. | Solid | Solid |
| Block | f | d |
| Group | — | 4 |
| Period | 6 | 6 |
| Valence electrons | 2 | 2 |
| Common charges | +3 | +4 |
| Electron configuration | [Xe] 4f14 5d1 6s2 | [Xe] 4f14 5d2 6s2 |