| Quantity | Value | Units | Value | Units |
| <Z/A> | 0.42706 | |||
| Density | 5.86 | g cm-3 | ||
| Mean excitation energy | 421.2 | eV | ||
| Minimum ionization | 1.301 | MeV g-1cm2 | 7.624 | MeV cm-1 |
| Nuclear collision length | 92.9 | g cm-2 | 15.85 | cm |
| Nuclear interaction length | 153.6 | g cm-2 | 26.22 | cm |
| Pion collision length | 118.4 | g cm-2 | 20.21 | cm |
| Pion interaction length | 183.8 | g cm-2 | 31.36 | cm |
| Radiation length | 9.31 | g cm-2 | 1.589 | cm |
| Critical energy | 12.90 | MeV (for e-) | 12.48 | MeV (for e+) |
| Molière radius | 15.30 | g cm-2 | 2.612 | cm |
Plasma energy ![]() |
45.59 | eV | ||
| Muon critical energy | 221. | GeV |
| Elem | Z | Atomic frac* | Mass frac* |
| 8 | |||
| 16 | |||
| 57 | |||
| * calculated from mass fraction data. | |||