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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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