| Quantity | Value | Units | Value | Units |
| <Z/A> | 0.49415 | |||
| Specific gravity | 2.26 | g cm-3 | ||
| Minimum ionization | 1.705 | MeV g-1cm2 | 3.855 | MeV cm-1 |
| Nuclear collision length | 62.8 | g cm-2 | 27.79 | cm |
| Nuclear interaction length | 93.1 | g cm-2 | 41.19 | cm |
| Radiation length | 32.70 | g cm-2 | 14.46 | cm |
| Critical energy | 61.09 | MeV (for e-) | 59.40 | MeV (for e+) |
| Molière radius | 11.35 | g cm-2 | 5.020 | cm |
Plasma energy ![]() |
30.46 | eV | ||
| Muon critical energy | 830. | GeV |
| Elem | Z | Atomic frac* | Mass frac* |
| 7 | |||
| 8 | |||
| 11 | |||
| * calculated from mass fraction data. | |||