| Quantity | Value | Units | Value | Units |
| Atomic number | 14 | |||
| Atomic mass | 28.0855(3) | g mol-1 | ||
| Density | 2.329 | g cm-3 | ||
| Mean excitation energy | 173.0 | eV | ||
| Minimum ionization | 1.664 | MeV g-1cm2 | 3.876 | MeV cm-1 |
| Nuclear interaction length | 108.4 | g cm-2 | 46.52 | cm |
| Nuclear collision length | 70.2 | g cm-2 | 30.16 | cm |
| Pion interaction length | 137.7 | g cm-2 | 59.14 | cm |
| Pion collision length | 96.2 | g cm-2 | 41.29 | cm |
| Radiation length | 21.82 | g cm-2 | 9.370 | cm |
| Critical energy | 40.19 | MeV (for e-) | 39.05 | MeV (for e+) |
| Muon critical energy | 582. | GeV | ||
| Molière radius | 11.51 | g cm-2 | 4.944 | cm |
| Plasma energy ℏωp | 31.05 | eV | ||
| Melting point | 1687. | K | 1414. | C |
| Boiling point @ 1 atm | 3538. | K | 3265. | C |
| Index of refraction (Na D) | 3.950 |