Isotopes of Sodium (Na)

Symbol Mass Number Relative Atomic Mass Isotopic Composition
18Na 18 18.025970(50)
19Na 19 19.013877(13)
20Na 20 20.007351(7)
21Na 21 20.9976552(8)
22Na 22 21.9944364(4)
23Na 23 22.9897692809(29) 1.0000
24Na 24 23.99096278(8)
25Na 25 24.9899540(13)
26Na 26 25.992633(6)
27Na 27 26.994077(4)
28Na 28 27.998938(14)
29Na 29 29.002861(14)
30Na 30 30.008976(27)
31Na 31 31.01359(23)
32Na 32 32.02047(38)
33Na 33 33.02672(94)
34Na 34 34.03517(96)#
35Na 35 35.04249(102)#
36Na 36 36.05148(102)#
37Na 37 37.05934(103)#

Legend

Mass Number
Relative Atomic Mass
Isotopic Composition
Standard Atomic Weight
Na: 22.98976928(2)

Isotopic Composition