| Quantity | Value | Units | Value | Units |
| <Z/A> | 0.57034 | |||
| Specific gravity | 0.779 | g cm-3 | ||
| Minimum ionization | 2.087 | MeV g-1cm2 | 1.626 | MeV cm-1 |
| Nuclear collision length | 56.1 | g cm-2 | 72.04 | cm |
| Nuclear interaction length | 78.5 | g cm-2 | 100.7 | cm |
| Radiation length | 44.77 | g cm-2 | 57.48 | cm |
| Critical energy | 102.33 | MeV (for e-) | 99.67 | MeV (for e+) |
| Molière radius | 9.28 | g cm-2 | 11.91 | cm |
Plasma energy ![]() |
19.21 | eV | ||
| Muon critical energy | 1287. | GeV |
| Elem | Z | Atomic frac* | Mass frac* |
| 1 | |||
| 6 | |||
| * calculated from mass fraction data. | |||