Isotopes of Cerium (Ce)

Symbol Mass Number Relative Atomic Mass Isotopic Composition
119Ce 119 118.95276(64)#
120Ce 120 119.94664(75)#
121Ce 121 120.94342(54)#
122Ce 122 121.93791(43)#
123Ce 123 122.93540(32)#
124Ce 124 123.93041(32)#
125Ce 125 124.92844(21)#
126Ce 126 125.923970(30)
127Ce 127 126.922730(60)
128Ce 128 127.918910(30)
129Ce 129 128.918100(30)
130Ce 130 129.914740(30)
131Ce 131 130.914420(40)
132Ce 132 131.911460(22)
133Ce 133 132.911515(18)
134Ce 134 133.908925(22)
135Ce 135 134.909151(12)
136Ce 136 135.907172(14) 0.00185(2)
137Ce 137 136.907806(14)
138Ce 138 137.905991(11) 0.00251(2)
139Ce 139 138.906653(8)
140Ce 140 139.9054387(26) 0.88450(51)
141Ce 141 140.9082763(26)
142Ce 142 141.909244(3) 0.11114(51)
143Ce 143 142.912386(3)
144Ce 144 143.913647(4)
145Ce 145 144.917230(40)
146Ce 146 145.918760(70)
147Ce 147 146.922670(30)
148Ce 148 147.924430(30)
149Ce 149 148.92840(10)
150Ce 150 149.930410(50)
151Ce 151 150.93398(11)
152Ce 152 151.93654(21)#
153Ce 153 152.94058(43)#
154Ce 154 153.94342(54)#
155Ce 155 154.94804(64)#
156Ce 156 155.95126(64)#
157Ce 157 156.95634(75)#

Legend

Mass Number
Relative Atomic Mass
Isotopic Composition
Standard Atomic Weight
Ce: 140.116(1)
Notes (Ce)
m:

Isotopic Composition