| Quantity | Value | Units | Value | Units |
| <Z/A> | 0.54938 | |||
| Specific gravity | 1.040 | g cm-3 | ||
| Mean excitation energy | 75.3 | eV | ||
| Minimum ionization | 1.970 | MeV g-1cm2 | 2.049 | MeV cm-1 |
| Nuclear collision length | 58.6 | g cm-2 | 56.38 | cm |
| Nuclear interaction length | 83.7 | g cm-2 | 80.46 | cm |
| Pion collision length | 86.1 | g cm-2 | 82.80 | cm |
| Pion interaction length | 115.6 | g cm-2 | 111.1 | cm |
| Radiation length | 36.55 | g cm-2 | 35.14 | cm |
| Critical energy | 78.83 | MeV (for e-) | 76.73 | MeV (for e+) |
| Molière radius | 9.83 | g cm-2 | 9.453 | cm |
| Plasma energy ℏωp | 21.78 | eV | ||
| Muon critical energy | 1032. | GeV |
| Elem | Z | Atomic frac* | Mass frac |
| 1 | |||
| 6 | |||
| 7 | |||
| 8 | |||
| 11 | |||
| 12 | |||
| 15 | |||
| 16 | |||
| 17 | |||
| 19 | |||
| 20 | |||
| 26 | |||
| 30 | |||
| * calculated from mass fraction data | |||