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Isotopes of Iodine (Z=53)

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Isotope Half-life Spin Parity Decay Mode(s) or Abundance
108I 36 ms (1) %A=91 15, %P < 1
109I 100 us %P ~ 100
110I 0.65 s %EC+%B+=83 4, %A=17 4, %ECP=11 3 , %ECA=1.1 3
111I 2.5 s (5/2+) %EC+%B+=99.9, %A ~ 0.1
112I 3.42 s %EC+%B+=100, %A ~ 0.0012
113I 6.6 s (5/2+) %EC+%B+=100, %ECA=?, %A =3.310E-7
114I 2.1 s 1+ %EC+%B+= 100, %ECP=?
114m1I 6.2 s (7) %EC+%B+=?, %IT=?
115I 1.3 m (5/2+) %EC+%B+=100
116I 2.91 s 1+ %EC+%B+=100
116m1I 3.27 us (7-)
117I 2.22 m (5/2)+ %EC+%B+=100
118I 13.7 m 2- %EC+%B+=100
118m1I 8.5 m (7-) %EC+%B+<100, %IT>0
119I 19.1 m 5/2+ %EC+%B+=100
120I 81.0 m 2- %EC+%B+=100
120m1I 53 m 4 TO 8 %EC+%B+=100
121I 2.12 h 5/2+ %EC+%B+=100
122I 3.63 m 1+ %EC+%B+=100
122m1I 80 us
123I 13.27 h 5/2+ %EC+%B+=100
124I 4.1760 d 2- %EC+%B+=100
125I 59.408 d 5/2+ %EC=100
126I 13.11 d 2- %EC+%B+=56.3 20, %B-=43.7 20
127I stable 5/2+ %Abundance=100
128I 24.99 m 1+ %B-=93.1 8 , %EC+%B+=6.9 8
129I 1.57e7 y 7/2+ %B-=100
130I 12.36 h 5+ %B-=100
130m1I 9.0 m 2+ %IT=84 2, %B-=16 2
131I 8.02070 d 7/2+ %B-=100
132I 2.295 h 4+ %B-=100
132m1I 1.387 h (8-) %IT=86 2, %B-=14 2
133I 20.8 h 7/2+ %B-=100
133m1I 9 s (19/2-) %IT=100
134I 52.5 m (4)+ %B-=100
134m1I 3.60 m (8)- %IT=97.7 10, %B-=2.3 10
135I 6.57 h 7/2+ %B-=100
136I 83.4 s (1-) %B-=100
136m1I 46.9 s (6-) %B-=100
137I 24.5 s (7/2+) %B-=100, %B-N=6.97 42
138I 6.49 s (2-) %B-=100, %B-N=5.5 4
139I 2.29 s (7/2+) %B-=100, %B-N=9.9 8
140I 0.86 s (4) %B-=100 , %B-N=9.3 10
141I 0.43 s %B-=100, %B-N=21.2 30
142I
143I
144I
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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