| Quantity | Value | Units | Value | Units |
| Atomic number | 54 | |||
| Atomic mass | 131.293(6) | g mole-1 | ||
| Specific gravity | 2.953 | g cm-3 | ||
| Mean excitation energy | 482.0 | eV | ||
| Minimum ionization | 1.255 | MeV g-1cm2 | 3.707 | MeV cm-1 |
| Nuclear collision length | 100.8 | g cm-2 | 34.15 | cm |
| Nuclear interaction length | 172.1 | g cm-2 | 58.29 | cm |
| Pion collision length | 125.0 | g cm-2 | 42.31 | cm |
| Pion interaction length | 199.6 | g cm-2 | 67.58 | cm |
| Radiation length | 8.48 | g cm-2 | 2.872 | cm |
| Critical energy | 11.66 | MeV (for e-) | 11.28 | MeV (for e+) |
| Molière radius | 15.43 | g cm-2 | 5.224 | cm |
| Plasma energy ℏωp | 31.76 | eV | ||
| Muon critical energy | 200. | GeV | ||
| Melting point | 161.4 | K | -111.8 | C |
| Boiling point @ 1 atm | 165.1 | K | -108.0 | C |
| Index of refraction (Na D) | 1.392 |