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Isotopes of Osmium (Z=76)

Click on an isotope to get more information about its decay
Isotope Half-life Spin Parity Decay Mode(s) or Abundance
162Os 1.9 ms 0+ %A=100
163Os %A=?, %EC+%B+=?
164Os 21 ms0+ %A ~ 98 , %EC+%B+ ~ 2
165Os 71 ms(7/2-) %A > 60 , %EC+%B+ < 40
166Os 181 ms0+ %A=72 13, %EC+%B+=28 13
167Os 0.83 s %A=67 9, %EC+%B+=33 9
168Os 2.1 s 0+ %EC+%B+=56 4, %A=44 4
169Os 3.4 s %EC+%B+=89 1, %A=11 1
170Os 7.3 s0+ %EC+%B+=88 1, %A=12 1
171Os 8.0 s (5/2-) %EC+%B+=98.3 3, %A=1.7 3
172Os 19.2 s0+ %EC+%B+=99.0 2, %A=1.0 2
173Os 16 s (5/2-) %EC+%B+=99.979 9, %A=0.021 9
174Os 44 s0+ %EC+%B+=99.980 +4-10, %A=0.020 +10-4
175Os 1.4 m(5/2-) %EC+%B+=100
176Os 3.6 m 0+ %EC+%B+=100
177Os 2.8 m (1/2-) %EC+%B+=100
178Os 5.0 m0+ %EC+%B+=100
179Os 6.5 m(1/2-) %EC+%B+=100
180Os 21.5 m 0+ %EC+%B+=100
181Os 105 m 1/2- %EC+%B+=100
181m1Os 2.7 m (7/2)- %EC+%B+=100
182Os 22.10 h 0+ %EC=100
183Os 13.0 h 9/2+ %EC+%B+=100
183m1Os 9.9 h 1/2- %EC+%B+=85 2, %IT=15 2
184Os 5.6e13 y 0+ %Abundance=0.02 1
185Os 93.6 d 1/2- %EC=100
186Os 2.0e15 y 0+ %Abundance=1.58 30, %A=100
187Os stable 1/2- %Abundance=1.6 3
188Os stable 0+ %Abundance=13.3 7
189Os stable 3/2- %Abundance=16.1 8
189m1Os 5.8 h 9/2- %IT=100
190Os stable0+ %Abundance=26.4 12
190m1Os 9.9 m (10)- %IT=100
191Os 15.4 d 9/2- %B-=100
191m1Os 13.10 h 3/2- %IT=100
192Os stable 0+ %Abundance=41.0 8
192m1Os 5.9 s (10-) %IT > 87, %B- < 13
193Os 30.11 h 3/2- %B-=100
194Os 6.0 y 0+ %B-=100
195Os 6.5 m %B-=100
196Os 34.9 m0+ %B-=100
 
Last update on
February 15, 2012