| Quantity | Value | Units | Value | Units |
| <Z/A> | 0.42101 | |||
| Specific gravity | 6.22 | g cm-3 | ||
| Minimum ionization | 1.255 | MeV g-1cm2 | 7.808 | MeV cm-1 |
| Nuclear collision length | 95.9 | g cm-2 | 15.42 | cm |
| Nuclear interaction length | 158.0 | g cm-2 | 25.40 | cm |
| Radiation length | 7.87 | g cm-2 | 1.265 | cm |
| Critical energy | 10.41 | MeV (for e-) | 10.05 | MeV (for e+) |
| Molière radius | 16.04 | g cm-2 | 2.578 | cm |
Plasma energy ![]() |
46.63 | eV | ||
| Muon critical energy | 183. | GeV |
| Elem | Z | Atomic frac* | Mass frac* |
| 8 | |||
| 14 | |||
| 22 | |||
| 33 | |||
| 82 | |||
| * calculated from mass fraction data. | |||