| Quantity | Value | Units | Value | Units |
| <Z/A> | 0.39194 | |||
| Specific gravity | 13.6 | g cm-3 | ||
| Minimum ionization | 1.105 | MeV g-1cm2 | 15.06 | MeV cm-1 |
| Nuclear collision length | 113.1 | g cm-2 | 8.301 | cm |
| Nuclear interaction length | 195.5 | g cm-2 | 14.35 | cm |
| Radiation length | 6.26 | g cm-2 | 0.4592 | cm |
| Critical energy | 7.10 | MeV (for e-) | 6.84 | MeV (for e+) |
| Molière radius | 18.69 | g cm-2 | 1.371 | cm |
Plasma energy ![]() |
66.60 | eV | ||
| Muon critical energy | 136. | GeV |
| Elem | Z | Atomic frac* | Mass frac* |
| 6 | |||
| 92 | |||
| * calculated from mass fraction data. | |||