Isotopes of Silicon (Si)

Symbol Mass Number Relative Atomic Mass Isotopic Composition
22Si 22 22.03453(22)#
23Si 23 23.02552(21)#
24Si 24 24.011546(21)
25Si 25 25.004106(11)
26Si 26 25.992330(3)
27Si 27 26.98670491(16)
28Si 28 27.9769265325(19) 0.92223(19)
29Si 29 28.976494700(22) 0.04685(8)
30Si 30 29.97377017(3) 0.03092(11)
31Si 31 30.97536323(4)
32Si 32 31.97414808(5)
33Si 33 32.978000(17)
34Si 34 33.978576(15)
35Si 35 34.984580(40)
36Si 36 35.98660(13)
37Si 37 36.99294(18)
38Si 38 37.99563(15)
39Si 39 39.00207(36)
40Si 40 40.00587(60)
41Si 41 41.01456(198)
42Si 42 42.01979(54)#
43Si 43 43.02866(75)#
44Si 44 44.03526(86)#

Legend

Mass Number
Relative Atomic Mass
Isotopic Composition
Standard Atomic Weight
Si: [28.084,28.086]

Isotopic Composition