Isotopes of Hafnium (Z=72)

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Isotope Half-life Spin Parity Decay Mode(s) or Abundance
154Hf 2 s 0+ %EC+%B+=100
155Hf 0.89 s %EC+%B+=100, %A=?
156Hf 25 ms 0+ %A > 81
156m1Hf 444 us
157Hf 110 ms 7/2- %A=86 9, %EC+%B+=14 9
158Hf 2.85 s0+ %A=44 2, %EC+%B+=56 2
159Hf 5.6 s %EC+%B+=59 5, %A=41 5
160Hf 13.6 s 0+ %EC+%B+=99.3 2, %A=0.7 2
161Hf 16.8 s(13/2+) %EC+%B+=99.71 5, %A=0.29 5
162Hf 37.6 s0+ %EC+%B+=99.9937 14, %A=0.0063 14
163Hf 40.0 s %EC+%B+=100
164Hf 111 s0+ %EC+%B+=100
165Hf 76 s(5/2-) %EC+%B+=100
166Hf 6.77 m0+ %EC+%B+=100
167Hf 2.05 m (5/2-) %EC+%B+=100
168Hf 25.95 m 0+ %EC+%B+=100
169Hf 3.24 m (5/2)- %EC+%B+=100
170Hf 16.01 h0+ %EC=100
171Hf 12.1 h (7/2+) %EC+%B+=100
172Hf 1.87 y0+ %EC=100
173Hf 23.6 h 1/2- %EC+%B+=100
174Hf 2.0e15 y0+ %Abundance=0.162 3, %A=100
175Hf 70 d5/2- %EC=100
176Hf stable 0+ %Abundance=5.206 5
177Hf stable7/2- %Abundance=18.606 4
177m1Hf 1.08 s23/2+ %IT=100
177m2Hf 51.4 m37/2- %IT=100
178Hf stable0+ %Abundance=27.297 4
178m1Hf 4.0 s8- %IT=100
178m2Hf 31 y 16+ %IT=100
179Hf stable9/2+ %Abundance=13.629 6
179m1Hf 18.67 s 1/2- %IT=100
179m2Hf 25.05 d 25/2- %IT=100
180Hf stable0+ %Abundance=35.100 7
180m1Hf 5.5 h 8- %IT=99.7 1, %B-=0.3 1
181Hf 42.39 d 1/2- %B-=100
182Hf 9e6 y 0+ %B-=100
182m1Hf 61.5 m 8- %B-=58 3 , %IT=42 3
183Hf 1.067 h(3/2-) %B-=100
184Hf 4.12 h 0+ %B-=100
184m1Hf 48 s (8-) %IT=100
185Hf 3.5 m %B-=100
186Hf 0+
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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