| Quantity | Value | Units | Value | Units |
| Atomic number | 75 | |||
| Atomic mass | 186.207(1) | g mole-1 | ||
| Density | 21.0 | g cm-3 | ||
| Mean excitation energy | 736.0 | eV | ||
| Minimum ionization | 1.143 | MeV g-1cm2 | 24.02 | MeV cm-1 |
| Nuclear collision length | 110.8 | g cm-2 | 5.269 | cm |
| Nuclear interaction length | 192.8 | g cm-2 | 9.170 | cm |
| Pion collision length | 134.2 | g cm-2 | 6.386 | cm |
| Pion interaction length | 219.5 | g cm-2 | 10.44 | cm |
| Radiation length | 6.69 | g cm-2 | 0.3183 | cm |
| Critical energy | 7.85 | MeV (for e-) | 7.57 | MeV (for e+) |
| Molière radius | 18.06 | g cm-2 | 0.8594 | cm |
| Plasma energy |
83.85 | eV | ||
| Muon critical energy | 148. | GeV |