| Quantity | Value | Units | Value | Units |
| Atomic number | 6 | |||
| Atomic mass | 12.0107(8) | g mole-1 | ||
| Specific gravity | 2.000 | g cm-3 | ||
| Mean excitation energy | 78.0 | eV | ||
| Minimum ionization | 1.749 | MeV g-1cm2 | 3.497 | MeV cm-1 |
| Nuclear collision length | 59.2 | g cm-2 | 29.60 | cm |
| Nuclear interaction length | 85.8 | g cm-2 | 42.90 | cm |
| Pion collision length | 86.5 | g cm-2 | 43.23 | cm |
| Pion interaction length | 117.8 | g cm-2 | 58.89 | cm |
| Radiation length | 42.70 | g cm-2 | 21.35 | cm |
| Critical energy | 82.08 | MeV (for e-) | 79.85 | MeV (for e+) |
| Molière radius | 11.03 | g cm-2 | 5.515 | cm |
| Plasma energy ℏωp | 28.80 | eV | ||
| Muon critical energy | 1060. | GeV |