Isotopes of Magnesium (Mg)

Symbol Mass Number Relative Atomic Mass Isotopic Composition
19Mg 19 19.03547(27)
20Mg 20 20.018863(29)
21Mg 21 21.011713(18)
22Mg 22 21.9995738(14)
23Mg 23 22.9941237(14)
24Mg 24 23.985041700(14) 0.7899(4)
25Mg 25 24.98583692(3) 0.1000(1)
26Mg 26 25.982592929(30) 0.1101(3)
27Mg 27 26.98434059(5)
28Mg 28 27.9838768(22)
29Mg 29 28.988600(15)
30Mg 30 29.990434(9)
31Mg 31 30.996546(13)
32Mg 32 31.998975(19)
33Mg 33 33.005254(21)
34Mg 34 34.00946(25)
35Mg 35 35.01734(43)#
36Mg 36 36.02300(54)#
37Mg 37 37.03140(97)#
38Mg 38 38.03757(54)#
39Mg 39 39.04677(55)#
40Mg 40 40.05393(97)#

Legend

Mass Number
Relative Atomic Mass
Isotopic Composition
Standard Atomic Weight
Mg: [24.304,24.307]

Isotopic Composition