| Atomic number | : | 21 |
| Atomic mass | : | 44.9559 g.mol-1 |
| Electronegativity according to Pauling | : | unknown |
| Density | : | 3.0g.cm-3 at 20 °C |
| Melting point | : | 1541 °C |
| Boiling point | : | 2836 °C |
| Vanderwaals radius | : | 0.161 nm |
| Ionic radius | : | 0.083 (+3) nm |
| Isotopes | : | 7 |
| Electronic shell | : | [Ar] 3d1 4s2 |
| Energy of first ionisation | : | 640.5 kJ.mol-1 |
| Energy of second ionisation | : | 1233 kJ.mol-1 |
| Energy of third ionisation | : | 2389 kJ.mol-1 |
| Energy of fourth ionisation | : | 7089 kJ.mol-1 |
| Discovered by | : | Lars Nilson in 1879 |
Periodic Table of Elements
