Isotopes of magnesium
Isotopes of magnesium
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Isotopes of magnesium

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Isotopes of magnesium

Magnesium (12Mg) naturally occurs as three stable isotopes: 24
Mg
, 25
Mg
, and 26
Mg
. There are also 19 artificial radioisotopes that have been discovered, ranging from 18
Mg
to 40
Mg
(with the exception of 39
Mg
). The longest-lived of them is 28
Mg
with a half-life of 20.915 hours. The isotopes lighter than the stable ones mostly decay to isotopes of sodium, while those heavier decay to isotopes of aluminium.

A precise measurement of the neutron-rich 40Mg in 2019 showed an unexpected difference in its nuclear structure, compared to the lighter neighboring isotopes.

Daughter products other than magnesium

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