| Quantity | Value | Units | Value | Units |
| Atomic number | 72 | |||
| Atomic mass | 178.49(2) | g mole-1 | ||
| Specific gravity | 13.31 | g cm-3 | ||
| Mean excitation energy | 705.0 | eV | ||
| Minimum ionization | 1.152 | MeV g-1cm2 | 15.33 | MeV cm-1 |
| Nuclear collision length | 109.5 | g cm-2 | 8.226 | cm |
| Nuclear interaction length | 190.1 | g cm-2 | 14.28 | cm |
| Pion collision length | 133.0 | g cm-2 | 9.995 | cm |
| Pion interaction length | 216.9 | g cm-2 | 16.30 | cm |
| Radiation length | 6.89 | g cm-2 | 0.5177 | cm |
| Critical energy | 8.22 | MeV (for e-) | 7.93 | MeV (for e+) |
| Molière radius | 17.77 | g cm-2 | 1.335 | cm |
| Plasma energy ℏωp | 66.77 | eV | ||
| Muon critical energy | 155. | GeV |