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Isotopes for Pure Magnesium

Magnesium has 3 natural isotopes with the mass numbers 24, 25 and 26.

Isotope	Distribution	Mass
12Mg24	78.7%	23.98504
12Mg25	10.1%	24.98584
12Mg26	11.2%	25.98259

Public Reference(s): 30 33 34 35

Magnesium has 6 isotopes with half life time between 0.12 s and 21 hours.

Isotope	Half Life
12Mg20	0.6 s Public Reference(s): 35
12Mg21 Public Reference(s): 34	0.12 s Public Reference(s): 35
12Mg22 Public Reference(s): 34
12Mg 23 Public Reference(s): 34	12.0 s Public Reference(s): 30
	12.1 s Public Reference(s): 35
12Mg27 Public Reference(s): 34	10 min Public Reference(s): 30
	9.5 min Public Reference(s): 35
12Mg28 Public Reference(s): 34	21 h Public Reference(s): 30 35

In addition, 2 very short-living isotopes exist:

12Mg29

12Mg30

Public Reference(s): 34

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