| Quantity | Value | Units | Value | Units |
| <Z/A> | 0.48585 | |||
| Specific gravity | 1.483 | g cm-3 | ||
| Mean excitation energy | 156.0 | eV | ||
| Minimum ionization | 1.645 | MeV g-1cm2 | 2.440 | MeV cm-1 |
| Nuclear collision length | 71.6 | g cm-2 | 48.26 | cm |
| Nuclear interaction length | 110.7 | g cm-2 | 74.62 | cm |
| Pion collision length | 97.7 | g cm-2 | 65.87 | cm |
| Pion interaction length | 140.7 | g cm-2 | 94.88 | cm |
| Radiation length | 20.53 | g cm-2 | 13.84 | cm |
| Critical energy | 37.34 | MeV (for e-) | 36.29 | MeV (for e+) |
| Molière radius | 11.66 | g cm-2 | 7.861 | cm |
| Plasma energy ℏωp | 24.46 | eV | ||
| Muon critical energy | 543. | GeV |
| Elem | Z | Atomic frac* | Mass frac |
| 1 | |||
| 6 | |||
| 17 | |||
| * calculated from mass fraction data | |||