Scandium vs Yttrium
Pick up to 3 elements and see how they stack up.
| Property | Scandium | Yttrium |
|---|---|---|
| Atomic number | 21 | 39 |
| Atomic mass | 44.956 | 88.906 |
| Electronegativity | 1.36 | 1.22 |
| Melting point | 1,814 K (1,540.8 °C) | 1,799 K (1,525.8 °C) |
| Boiling point | 3,109 K (2,835.8 °C) | 3,203 K (2,929.8 °C) |
| Density | 2.989 g/cm³ | 4.469 g/cm³ |
| Atomic radius | 211 pm | 219 pm |
| Ionization energy | 6.561 eV | 6.217 eV |
| Discovered | 1879 | 1794 |
| Category | Transition metal | Transition metal |
| State at room temp. | Solid | Solid |
| Block | d | d |
| Group | 3 | 3 |
| Period | 4 | 5 |
| Valence electrons | 2 | 2 |
| Common charges | +3 | +3 |
| Electron configuration | [Ar] 3d1 4s2 | [Kr] 4d1 5s2 |