| Quantity | Value | Units | Value | Units |
| Atomic number | 58 | |||
| Atomic mass | 140.116(1) | g mole-1 | ||
| Specific gravity | 6.770 | g cm-3 | ||
| Mean excitation energy | 523.0 | eV | ||
| Minimum ionization | 1.234 | MeV g-1cm2 | 8.353 | MeV cm-1 |
| Nuclear collision length | 102.6 | g cm-2 | 15.15 | cm |
| Nuclear interaction length | 175.7 | g cm-2 | 25.96 | cm |
| Pion collision length | 126.6 | g cm-2 | 18.70 | cm |
| Pion interaction length | 203.0 | g cm-2 | 29.99 | cm |
| Radiation length | 7.96 | g cm-2 | 1.175 | cm |
| Critical energy | 10.40 | MeV (for e-) | 10.04 | MeV (for e+) |
| Molière radius | 16.23 | g cm-2 | 2.397 | cm |
| Plasma energy ℏωp | 48.24 | eV | ||
| Muon critical energy | 185. | GeV |