Isotopes of Iron (Z=26)

Click on an isotope to get more information about its decay
Isotope Half-life Spin Parity Decay Mode(s) or Abundance
45Fe
46Fe 20 ms 0+ %EC=100, %ECP=?
47Fe 27 ms %EC+%B+=100, %ECP=?
48Fe 44 ms0+ %EC+%B+=100, %ECP > 3.6 11
49Fe 70 ms(7/2-) %EC+%B+=100, %ECP > 62
50Fe 150 ms0+ %EC+%B+=100, %B+P ~ 0
51Fe 305 ms5/2- %EC+%B+=100
52Fe 8.275 h0+ %EC+%B+=100
52m1Fe 45.9 s(12+) %EC+%B+=100
53Fe 8.51 m7/2- %EC+%B+=100
53m1Fe 2.58 m19/2- %IT=100
54Fe stable0+ %Abundance=5.8 1
55Fe 2.73 y 3/2- %EC=100
56Fe stable0+ %Abundance=91.72 30
57Fe stable1/2- %Abundance=2.2 1
58Fe stable0+ %Abundance=0.28 1
59Fe 44.503 d3/2- %B-=100
60Fe 1.5e+6 y0+ %B-=100
61Fe 5.98 m3/2-,5/2- %B-=100
62Fe 68 s0+ %B-=100
63Fe 6.1 s (5/2)- %B-=100
64Fe 2.0 s 0+ %B-=100
65Fe 0.4 s %B-=100
66Fe 440 ms0+ %B-=100
67Fe 470 ms (1/2-) %B-=100, %B-N=1.1 sys
68Fe 0.10 s0+ %B-=100
69Fe 170 ms (1/2-) %B-=100, %B-N=6.9 sys
70Fe 0+ %B-=?
71Fe (7/2+) %B-=?
72Fe 0+ %B-=?
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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