| Quantity | Value | Units | Value | Units |
| <Z/A> | 0.54405 | |||
| Density | 1.13 | g cm-3 | ||
| Mean excitation energy | 69.3 | eV | ||
| Minimum ionization | 1.954 | MeV g-1cm2 | 2.209 | MeV cm-1 |
| Nuclear collision length | 57.9 | g cm-2 | 51.21 | cm |
| Nuclear interaction length | 82.3 | g cm-2 | 72.82 | cm |
| Pion collision length | 85.3 | g cm-2 | 75.52 | cm |
| Pion interaction length | 114.2 | g cm-2 | 101.1 | cm |
| Radiation length | 40.62 | g cm-2 | 35.94 | cm |
| Critical energy | 86.88 | MeV (for e-) | 84.57 | MeV (for e+) |
| Molière radius | 9.91 | g cm-2 | 8.773 | cm |
Plasma energy ![]() |
22.59 | eV | ||
| Muon critical energy | 1119. | GeV |
| Elem | Z | Atomic frac* | Mass frac* |
| 1 | |||
| 6 | |||
| 8 | |||
| * calculated from mass fraction data. | |||