Trace Sciences International

Magnesium Isotopes

Nominal Mass
Accurate Mass
% Natural Abundance
Chemical Form
Enrichment Available %

24 Mg

23.9850423 (8)

78.99 (4)

metal, oxide

99+

25 Mg

24.9858374 (8)

10.00 (1)

metal, oxide

94 – 99+

26 Mg

25.9825937 (8)

11.01 (3)

metal, oxide

97 – 99+

Magnesium Isotopes Mg-25 and Mg-26 are used to study the absorption and metabolism of Mg in the human body and they are also used for heart disease studies. Mg-25 is also used for the production of the radioisotope Na-22.