| Quantity | Value | Units | Value | Units |
| <Z/A> | 0.40861 | |||
| Density | 7.00 | g cm-3 | ||
| Mean excitation energy | 690.3 | eV | ||
| Minimum ionization | 1.187 | MeV g-1cm2 | 8.315 | MeV cm-1 |
| Nuclear collision length | 105.2 | g cm-2 | 15.03 | cm |
| Nuclear interaction length | 179.7 | g cm-2 | 25.65 | cm |
| Pion collision length | 129.7 | g cm-2 | 18.52 | cm |
| Pion interaction length | 208.2 | g cm-2 | 29.73 | cm |
| Radiation length | 7.12 | g cm-2 | 1.017 | cm |
| Critical energy | 8.89 | MeV (for e-) | 8.58 | MeV (for e+) |
| Molière radius | 16.99 | g cm-2 | 2.426 | cm |
Plasma energy ![]() |
48.75 | eV | ||
| Muon critical energy | 163. | GeV |
| Elem | Z | Atomic frac* | Mass frac* |
| 17 | |||
| 81 | |||
| * calculated from mass fraction data. | |||