Isotopes of Uranium (Z=92)

Click on an isotope to get more information about its decay
Isotope Half-life Spin Parity Decay Mode(s) or Abundance
218U 1.5 ms 0+ %A=100
219U 42 us %A=?
220U
221U
222U 1.0 us 0+ %A=100
223U 18 us %A=?
224U 0.9 ms 0+ %A=100
225U 95 ms %A=100
226U 0.35 s 0+ %A=100
227U 1.1 m (3/2+) %A=100, %EC+%B+ < 0.001
228U 9.1 m 0+ %EC<5, %A>95
229U 58 m (3/2+) %EC+%B+ ~ 80, %A ~ 20
230U 20.8 d 0+ %A=100, %SF < 1.4E-10
231U 4.2 d(5/2-) %EC=100, %A ~ 0.0055
232U 68.9 y 0+ %A=100, %24NE=9E-11 7
233U 1.592e+5 y 5/2+ %A=100, %SF < 6E-11, %24NE < 9.5E-11
234U 2.455e+5 y 0+ %Abundance=0.0055 5, %A=100, %SF=1.64E-9 22, %NE=9E-12 7, %MG=1.4E-11 3
235U 7.038e+8 y 7/2- %Abundance=0.7200 12, %A=100, %SF=7.0E-9 21, %20NE=8E-10 4
235m1U 25 m 1/2+ %IT=100
236U 2.342e7 y 0+ %A=100, %SF=9.4E-8 4
237U 6.75 d 1/2+ %B-=100
238U 4.468e+9 y 0+ %Abundance=99.2745 60, %A=100, %SF=5.45E-5 7, %BB=2.2E-10 7
238m1U 225 ns 0+
238m2U 1 ns
239U 23.45 m 5/2+ %B-=100
240U 14.1 h 0+ %B-=100
241U
242U 16.8 m0+ %B-=100
Isotope Explorer Nuclear Structure and Decay Data
8th Edition of the Table of Isotopes
Isotopes Project Home Page
Lawrence Berkeley National Laboratory
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