| Quantity | Value | Units | Value | Units |
| Atomic number | 25 | |||
| Atomic mass | 54.938045(5) | g mole-1 | ||
| Specific gravity | 7.44 | g cm-3 | ||
| Minimum ionization | 1.428 | MeV g-1cm2 | 10.62 | MeV cm-1 |
| Nuclear collision length | 81.4 | g cm-2 | 10.94 | cm |
| Nuclear interaction length | 131.4 | g cm-2 | 17.67 | cm |
| Radiation length | 14.64 | g cm-2 | 1.968 | cm |
| Critical energy | 22.59 | MeV (for e-) | 21.89 | MeV (for e+) |
| Molière radius | 13.74 | g cm-2 | 1.847 | cm |
| Plasma energy |
53.02 | eV | ||
| Muon critical energy | 358. | GeV |