| Quantity | Value | Units | Value | Units |
| <Z/A> | 0.56663 | |||
| Specific gravity | 0.810 | g cm-3 | ||
| Minimum ionization | 2.067 | MeV g-1cm2 | 1.674 | MeV cm-1 |
| Nuclear collision length | 56.7 | g cm-2 | 69.99 | cm |
| Nuclear interaction length | 79.6 | g cm-2 | 98.30 | cm |
| Radiation length | 42.30 | g cm-2 | 52.23 | cm |
| Critical energy | 95.67 | MeV (for e-) | 93.17 | MeV (for e+) |
| Molière radius | 9.38 | g cm-2 | 11.58 | cm |
Plasma energy ![]() |
19.52 | eV | ||
| Muon critical energy | 1216. | GeV |
| Elem | Z | Atomic frac* | Mass frac* |
| 1 | |||
| 6 | |||
| 8 | |||
| * calculated from mass fraction data. | |||