| Quantity | Value | Units | Value | Units |
| <Z/A> | 0.43139 | |||
| Density | 5.50 | g cm-3 | ||
| Mean excitation energy | 416.8 | eV | ||
| Minimum ionization | 1.333 | MeV g-1cm2 | 7.332 | MeV cm-1 |
| Nuclear collision length | 89.7 | g cm-2 | 16.32 | cm |
| Nuclear interaction length | 145.6 | g cm-2 | 26.47 | cm |
| Pion collision length | 116.2 | g cm-2 | 21.13 | cm |
| Pion interaction length | 177.7 | g cm-2 | 32.31 | cm |
| Radiation length | 9.13 | g cm-2 | 1.660 | cm |
| Critical energy | 13.02 | MeV (for e-) | 12.60 | MeV (for e+) |
| Molière radius | 14.87 | g cm-2 | 2.704 | cm |
Plasma energy ![]() |
44.39 | eV | ||
| Muon critical energy | 217. | GeV |
| Elem | Z | Atomic frac* | Mass frac* |
| 70 | |||
| 13 | |||
| 8 | |||
| * calculated from mass fraction data. | |||