Isotopes of Selenium (Se)

Symbol Mass Number Relative Atomic Mass Isotopic Composition
65Se 65 64.96466(64)#
66Se 66 65.95521(32)#
67Se 67 66.95009(21)#
68Se 68 67.941800(40)
69Se 69 68.939560(40)
70Se 70 69.933390(70)
71Se 71 70.932240(30)
72Se 72 71.927112(13)
73Se 73 72.926765(11)
74Se 74 73.9224764(18) 0.0089(4)
75Se 75 74.9225234(18)
76Se 76 75.9192136(18) 0.0937(29)
77Se 77 76.9199140(18) 0.0763(16)
78Se 78 77.9173091(18) 0.2377(28)
79Se 79 78.9184991(18)
80Se 80 79.9165213(21) 0.4961(41)
81Se 81 80.9179925(22)
82Se 82 81.9166994(22) 0.0873(22)
83Se 83 82.919118(4)
84Se 84 83.918462(16)
85Se 85 84.922250(30)
86Se 86 85.924272(17)
87Se 87 86.928520(40)
88Se 88 87.931420(50)
89Se 89 88.93645(32)#
90Se 90 89.93996(43)#
91Se 91 90.94596(54)#
92Se 92 91.94992(64)#
93Se 93 92.95629(86)#
94Se 94 93.96049(86)#

Legend

Mass Number
Relative Atomic Mass
Isotopic Composition
Standard Atomic Weight
Se: 78.971(8)
Notes (Se)
m:

Isotopic Composition