Isotopes of Aluminium (Al)

Symbol Mass Number Relative Atomic Mass Isotopic Composition
21Al 21 21.02804(32)#
22Al 22 22.01952(10)#
23Al 23 23.007267(20)
24Al 24 23.9999389(30)
25Al 25 24.9904281(5)
26Al 26 25.98689169(6)
27Al 27 26.98153863(12) 1.0000
28Al 28 27.98191031(14)
29Al 29 28.9804450(13)
30Al 30 29.982960(15)
31Al 31 30.983947(22)
32Al 32 31.988120(90)
33Al 33 32.990840(80)
34Al 34 33.99685(12)
35Al 35 34.99986(19)
36Al 36 36.00621(23)
37Al 37 37.01068(36)
38Al 38 38.01723(78)
39Al 39 39.02297(158)
40Al 40 40.03145(75)#
41Al 41 41.03833(86)#
42Al 42 42.04689(97)#

Legend

Mass Number
Relative Atomic Mass
Isotopic Composition
Standard Atomic Weight
Al: 26.9815385(7)

Isotopic Composition