Isotopes of Krypton (Kr)

Symbol Mass Number Relative Atomic Mass Isotopic Composition
69Kr 69 68.96518(43)#
70Kr 70 69.95526(41)#
71Kr 71 70.94963(70)
72Kr 72 71.942092(9)
73Kr 73 72.939289(7)
74Kr 74 73.9330844(22)
75Kr 75 74.930946(9)
76Kr 76 75.925910(4)
77Kr 77 76.9246700(21)
78Kr 78 77.9203648(12) 0.00355(3)
79Kr 79 78.920082(4)
80Kr 80 79.9163790(16) 0.02286(10)
81Kr 81 80.9165920(21)
82Kr 82 81.9134836(19) 0.11593(31)
83Kr 83 82.914136(3) 0.11500(19)
84Kr 84 83.911507(3) 0.56987(15)
85Kr 85 84.9125273(21)
86Kr 86 85.91061073(11) 0.17279(41)
87Kr 87 86.91335486(29)
88Kr 88 87.914447(14)
89Kr 89 88.917630(60)
90Kr 90 89.919517(20)
91Kr 91 90.923450(60)
92Kr 92 91.926156(13)
93Kr 93 92.93127(11)
94Kr 94 93.93436(32)#
95Kr 95 94.93984(43)#
96Kr 96 95.94307(54)#
97Kr 97 96.94856(54)#
98Kr 98 97.95191(64)#
99Kr 99 98.95760(64)#
100Kr 100 99.96114(54)#

Legend

Mass Number
Relative Atomic Mass
Isotopic Composition
Standard Atomic Weight
Kr: 83.798(2)
Notes (Kr)

Isotopic Composition