Isotopes of Strontium (Sr)

Symbol Mass Number Relative Atomic Mass Isotopic Composition
73Sr 73 72.96597(64)#
74Sr 74 73.95631(54)#
75Sr 75 74.94995(24)
76Sr 76 75.941770(40)
77Sr 77 76.937945(10)
78Sr 78 77.932180(8)
79Sr 79 78.929708(9)
80Sr 80 79.924521(7)
81Sr 81 80.923212(7)
82Sr 82 81.918402(6)
83Sr 83 82.917557(11)
84Sr 84 83.913425(3) 0.0056(1)
85Sr 85 84.912933(3)
86Sr 86 85.9092602(12) 0.0986(1)
87Sr 87 86.9088771(12) 0.0700(1)
88Sr 88 87.9056121(12) 0.8258(1)
89Sr 89 88.9074507(12)
90Sr 90 89.907738(3)
91Sr 91 90.910203(5)
92Sr 92 91.911038(4)
93Sr 93 92.914026(8)
94Sr 94 93.915361(8)
95Sr 95 94.919359(8)
96Sr 96 95.921697(29)
97Sr 97 96.926153(21)
98Sr 98 97.928453(28)
99Sr 99 98.933240(90)
100Sr 100 99.93535(14)
101Sr 101 100.94052(13)
102Sr 102 101.94302(12)
103Sr 103 102.94895(54)#
104Sr 104 103.95233(75)#
105Sr 105 104.95858(75)#

Legend

Mass Number
Relative Atomic Mass
Isotopic Composition
Standard Atomic Weight
Sr: 87.62(1)
Notes (Sr)

Isotopic Composition