| Quantity | Value | Units | Value | Units |
| <Z/A> | 0.49814 | |||
| Density | 2.96 | g cm-3 | ||
| Minimum ionization | 1.704 | MeV g-1cm2 | 5.040 | MeV cm-1 |
| Nuclear collision length | 62.8 | g cm-2 | 21.24 | cm |
| Nuclear interaction length | 93.1 | g cm-2 | 31.47 | cm |
| Pion collision length | 89.7 | g cm-2 | 30.34 | cm |
| Pion interaction length | 124.4 | g cm-2 | 42.07 | cm |
| Radiation length | 31.77 | g cm-2 | 10.74 | cm |
| Critical energy | 59.08 | MeV (for e-) | 57.43 | MeV (for e+) |
| Molière radius | 11.40 | g cm-2 | 3.854 | cm |
Plasma energy ![]() |
34.98 | eV | ||
| Muon critical energy | 809. | GeV |
| Elem | Z | Atomic frac* | Mass frac* |
| 6 | |||
| 8 | |||
| 12 | |||
| * calculated from mass fraction data. | |||