Topic summary
Nucleons
Extracted from the Wikipedia article Nucleon.
Nucleons
^a The masses of the proton and neutron are known with far greater precision in daltons (Da) than in MeV/c due to the way in which these are defined. The conversion factor used is 1 Da = 931.494028(23) MeV/c.
^b At least 10 years. See proton decay.
^c For free neutrons; in most common nuclei, neutrons are stable.