| Quantity | Value | Units | Value | Units |
| <Z/A> | 0.54292 | |||
| Density | 1.26 | g cm-3 | ||
| Mean excitation energy | 72.6 | eV | ||
| Minimum ionization | 1.941 | MeV g-1cm2 | 2.448 | MeV cm-1 |
| Nuclear collision length | 58.3 | g cm-2 | 46.23 | cm |
| Nuclear interaction length | 83.2 | g cm-2 | 65.94 | cm |
| Pion collision length | 85.8 | g cm-2 | 68.00 | cm |
| Pion interaction length | 115.1 | g cm-2 | 91.26 | cm |
| Radiation length | 38.80 | g cm-2 | 30.76 | cm |
| Critical energy | 82.28 | MeV (for e-) | 80.08 | MeV (for e+) |
| Molière radius | 10.00 | g cm-2 | 7.927 | cm |
Plasma energy ![]() |
23.85 | eV | ||
| Muon critical energy | 1070. | GeV |
| Elem | Z | Atomic frac* | Mass frac* |
| 1 | |||
| 6 | |||
| 8 | |||
| * calculated from mass fraction data. | |||