| Quantity | Value | Units | Value | Units |
| <Z/A> | 0.48081 | |||
| Density | 2.10 | g cm-3 | ||
| Mean excitation energy | 120.7 | eV | ||
| Minimum ionization | 1.652 | MeV g-1cm2 | 3.470 | MeV cm-1 |
| Nuclear collision length | 66.0 | g cm-2 | 31.45 | cm |
| Nuclear interaction length | 99.4 | g cm-2 | 47.35 | cm |
| Pion collision length | 92.4 | g cm-2 | 44.01 | cm |
| Pion interaction length | 129.9 | g cm-2 | 61.87 | cm |
| Radiation length | 28.18 | g cm-2 | 13.42 | cm |
| Critical energy | 50.96 | MeV (for e-) | 49.54 | MeV (for e+) |
| Molière radius | 11.73 | g cm-2 | 5.584 | cm |
Plasma energy ![]() |
28.96 | eV | ||
| Muon critical energy | 709. | GeV |
| Elem | Z | Atomic frac* | Mass frac* |
| 6 | |||
| 9 | |||
| 17 | |||
| * calculated from mass fraction data. | |||