Quantity | Value | Units | Value | Units |
Atomic number | 19 | |||
Atomic mass | 39.0983(1) | g mole-1 | ||
Specific gravity | 0.8620 | g cm-3 | ||
Mean excitation energy | 190.0 | eV | ||
Minimum ionization | 1.623 | MeV g-1cm2 | 1.399 | MeV cm-1 |
Nuclear collision length | 75.4 | g cm-2 | 87.44 | cm |
Nuclear interaction length | 119.0 | g cm-2 | 138.0 | cm |
Pion collision length | 101.0 | g cm-2 | 117.2 | cm |
Pion interaction length | 148.1 | g cm-2 | 171.8 | cm |
Radiation length | 17.32 | g cm-2 | 20.09 | cm |
Critical energy | 31.62 | MeV (for e-) | 30.72 | MeV (for e+) |
Molière radius | 11.61 | g cm-2 | 13.47 | cm |
Plasma energy ℏωp | 18.65 | eV | ||
Muon critical energy | 472. | GeV |