Isotopes of Ytterbium (Z=70)

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Isotope Half-life Spin Parity Decay Mode(s) or Abundance
148Yb 0+
149Yb (1/2+,3/2+)
150Yb 0+
151Yb 1.6 s(1/2+) %EC+%B+=100, %ECP=?
151m1Yb 1.6 s(11/2-) %EC+%B+ ~ 100, %ECP=?
152Yb 3.04 s 0+ %EC+%B+=100, %ECP=?
153Yb 4.2 s 7/2- %A=50 sys %EC+%B+=50 sys
154Yb 0.409 s 0+ %A=92.6 12 , %EC+%B+=7.4 12
155Yb 1.800 s (7/2-) %A=89 4, %EC+%B+=11 4
156Yb 26.1 s 0+ %EC+%B+=90 2, %A=10 2
157Yb 38.6 s 7/2- %EC+%B+=99.5, %A=0.5
158Yb 1.49 m0+ %A ~ 0.0021 12, %EC+%B+=100
159Yb 1.58 m 5/2(-) %EC+%B+=100
160Yb 4.8 m0+ %EC+%B+=100
161Yb 4.2 m 3/2- %EC+%B+=100
162Yb 18.87 m 0+ %EC+%B+=100
163Yb 11.05 m 3/2- %EC+%B+=100
164Yb 75.8 m0+ %EC=100
165Yb 9.9 m5/2- %EC+%B+=100
166Yb 56.7 h0+ %EC=100
167Yb 17.5 m 5/2- %EC+%B+=100
168Yb stable 0+ %Abundance=0.13 1
169Yb 32.026 d 7/2+ %EC=100
169m1Yb 46 s 1/2- %IT=100
170Yb stable0+ %Abundance=3.05 6
171Yb stable 1/2- %Abundance=14.3 2
171m1Yb 5.25 ms 7/2+ %IT=100
172Yb stable0+ %Abundance=21.9 3
173Yb stable 5/2- %Abundance=16.12 21
174Yb stable0+ %Abundance=31.8 4
175Yb 4.185 d7/2- %B-=100
175m1Yb 68.2 ms1/2- %IT=100
176Yb stable 0+ %Abundance=12.7 2
176m1Yb 11.4 s (8-) %IT > 90, %B- < 10
177Yb 1.911 h(9/2+) %B-=100
177m1Yb 6.41 s(1/2-) %IT=100
178Yb 74 m0+ %B-=100
179Yb 8.0 m (1/2-) %B-=100
180Yb 2.4 m 0+ %B-=100
181Yb
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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