Isotopes of Rubidium (Rb)

Symbol Mass Number Relative Atomic Mass Isotopic Composition
71Rb 71 70.96532(54)#
72Rb 72 71.95908(54)#
73Rb 73 72.95056(16)#
74Rb 74 73.944265(4)
75Rb 75 74.938570(8)
76Rb 76 75.9350722(20)
77Rb 77 76.930408(8)
78Rb 78 77.928141(8)
79Rb 79 78.923989(6)
80Rb 80 79.922519(7)
81Rb 81 80.918996(6)
82Rb 82 81.9182086(30)
83Rb 83 82.915110(6)
84Rb 84 83.914385(3)
85Rb 85 84.911789738(12) 0.7217(2)
86Rb 86 85.91116742(21)
87Rb 87 86.909180527(13) 0.2783(2)
88Rb 88 87.91131559(17)
89Rb 89 88.912278(6)
90Rb 90 89.914802(7)
91Rb 91 90.916537(9)
92Rb 92 91.919729(7)
93Rb 93 92.922042(8)
94Rb 94 93.926405(9)
95Rb 95 94.929303(23)
96Rb 96 95.934270(30)
97Rb 97 96.937350(30)
98Rb 98 97.941790(50)
99Rb 99 98.94538(13)
100Rb 100 99.94987(32)#
101Rb 101 100.95320(18)
102Rb 102 101.95887(54)#

Legend

Mass Number
Relative Atomic Mass
Isotopic Composition
Standard Atomic Weight
Rb: 85.4678(3)
Notes (Rb)
m:

Isotopic Composition