| Quantity | Value | Units | Value | Units |
| <Z/A> | 0.42594 | |||
| Density | 6.01 | g cm-3 | ||
| Mean excitation energy | 543.5 | eV | ||
| Minimum ionization | 1.269 | MeV g-1cm2 | 7.628 | MeV cm-1 |
| Nuclear collision length | 98.0 | g cm-2 | 16.31 | cm |
| Nuclear interaction length | 166.2 | g cm-2 | 27.66 | cm |
| Pion collision length | 122.3 | g cm-2 | 20.36 | cm |
| Pion interaction length | 193.8 | g cm-2 | 32.25 | cm |
| Radiation length | 8.70 | g cm-2 | 1.447 | cm |
| Critical energy | 11.82 | MeV (for e-) | 11.42 | MeV (for e+) |
| Molière radius | 15.61 | g cm-2 | 2.597 | cm |
Plasma energy ![]() |
46.10 | eV | ||
| Muon critical energy | 208. | GeV |
| Elem | Z | Atomic frac* | Mass frac* |
| 47 | |||
| 53 | |||
| * calculated from mass fraction data. | |||