| Quantity | Value | Units | Value | Units |
| <Z/A> | 0.52257 | |||
| Density | 1.18 | g cm-3 | ||
| Minimum ionization | 1.901 | MeV g-1cm2 | 2.240 | MeV cm-1 |
| Nuclear collision length | 56.1 | g cm-2 | 47.62 | cm |
| Nuclear interaction length | 78.6 | g cm-2 | 66.70 | cm |
| Pion collision length | 83.5 | g cm-2 | 70.92 | cm |
| Pion interaction length | 110.7 | g cm-2 | 93.98 | cm |
| Radiation length | 47.39 | g cm-2 | 40.23 | cm |
| Critical energy | 97.84 | MeV (for e-) | 95.25 | MeV (for e+) |
| Molière radius | 10.27 | g cm-2 | 8.720 | cm |
Plasma energy ![]() |
22.61 | eV | ||
| Muon critical energy | 1218. | GeV |
| Elem | Z | Atomic frac* | Mass frac* |
| 1 | |||
| 3 | |||
| 7 | |||
| * calculated from mass fraction data. | |||