Quantity | Value | Units | Value | Units |
Atomic number | 11 | |||
Atomic mass | 22.98976928(2) | g mole-1 | ||
Specific gravity | 0.9710 | g cm-3 | ||
Mean excitation energy | 149.0 | eV | ||
Minimum ionization | 1.639 | MeV g-1cm2 | 1.592 | MeV cm-1 |
Nuclear collision length | 67.4 | g cm-2 | 69.46 | cm |
Nuclear interaction length | 102.6 | g cm-2 | 105.6 | cm |
Pion collision length | 93.4 | g cm-2 | 96.22 | cm |
Pion interaction length | 132.2 | g cm-2 | 136.2 | cm |
Radiation length | 27.74 | g cm-2 | 28.56 | cm |
Critical energy | 51.38 | MeV (for e-) | 49.99 | MeV (for e+) |
Molière radius | 11.45 | g cm-2 | 11.79 | cm |
Plasma energy ℏωp | 19.64 | eV | ||
Muon critical energy | 712. | GeV |