| Quantity | Value | Units | Value | Units |
| Atomic number | 63 | |||
| Atomic mass | 151.964(1) | g mole-1 | ||
| Density | 5.24 | g cm-3 | ||
| Mean excitation energy | 580.0 | eV | ||
| Minimum ionization | 1.219 | MeV g-1cm2 | 6.389 | MeV cm-1 |
| Nuclear collision length | 104.8 | g cm-2 | 19.99 | cm |
| Nuclear interaction length | 180.4 | g cm-2 | 34.41 | cm |
| Pion collision length | 128.7 | g cm-2 | 24.54 | cm |
| Pion interaction length | 207.5 | g cm-2 | 39.58 | cm |
| Radiation length | 7.44 | g cm-2 | 1.419 | cm |
| Critical energy | 9.59 | MeV (for e-) | 9.26 | MeV (for e+) |
| Molière radius | 16.44 | g cm-2 | 3.135 | cm |
| Plasma energy |
42.48 | eV | ||
| Muon critical energy | 175. | GeV |