| Quantity | Value | Units | Value | Units |
| <Z/A> | 0.41665 | |||
| Specific gravity | 6.20 | g cm-3 | ||
| Minimum ionization | 1.243 | MeV g-1cm2 | 7.704 | MeV cm-1 |
| Nuclear collision length | 98.6 | g cm-2 | 15.90 | cm |
| Nuclear interaction length | 167.3 | g cm-2 | 26.99 | cm |
| Radiation length | 8.90 | g cm-2 | 1.436 | cm |
| Critical energy | 11.84 | MeV (for e-) | 11.44 | MeV (for e+) |
| Molière radius | 15.95 | g cm-2 | 2.572 | cm |
Plasma energy ![]() |
46.31 | eV | ||
| Muon critical energy | 208. | GeV |
| Elem | Z | Atomic frac* | Mass frac* |
| 48 | |||
| 52 | |||
| * calculated from mass fraction data. | |||