Further data for radioisotopes (radioactive isotopes) of sodium are listed separately (including any which occur naturally) in the radioisotopes section. This table shows information about naturally occuring isotopes, their atomic masses, their natural abundances, their nuclear spins, and their magnetic moments.
Atomic mass (ma/u)
Natural abundance (atom %)
Nuclear spin (I)
Magnetic moment (μ/μN)
In the above picture, the most intense ion is set to 100% since this corresponds best to the output from a mass spectrometer. This is not to be confused with the relative percentage isotope abundances which total 100% for all the naturally occurring isotopes.