| Quantity | Value | Units | Value | Units |
| <Z/A> | 0.47572 | |||
| Specific gravity | 4.26 | g cm-3 | ||
| Minimum ionization | 1.562 | MeV g-1cm2 | 6.652 | MeV cm-1 |
| Nuclear collision length | 70.7 | g cm-2 | 16.61 | cm |
| Nuclear interaction length | 108.8 | g cm-2 | 25.54 | cm |
| Radiation length | 20.50 | g cm-2 | 4.812 | cm |
| Critical energy | 34.85 | MeV (for e-) | 33.82 | MeV (for e+) |
| Molière radius | 12.47 | g cm-2 | 2.928 | cm |
Plasma energy ![]() |
41.02 | eV | ||
| Muon critical energy | 516. | GeV |
| Elem | Z | Atomic frac* | Mass frac* |
| 8 | |||
| 22 | |||
| * calculated from mass fraction data. | |||