Isotopes of Thulium (Z=69)

Click on an isotope to get more information about its decay
Isotope Half-life Spin Parity Decay Mode(s) or Abundance
146Tm 235 ms(10+) %EC+%B+ ~ 55, %P ~ 45
146m1Tm 72 ms(5-,6-) %P=100, %EC+%B+=?
147Tm 0.56 s(11/2-) %EC+%B+ ~ 90, %P ~ 10
147m1Tm 360 us(1/2+,3/2+)
148Tm 0.7 s(10+) %EC+%B+=100
149Tm 0.9 s (11/2-) %EC+%B+=100, %ECP=0.2 +2-1
150Tm 2.2 s(6-) %EC+%B+=100, %ECP=1.2 3
150m1Tm 5.2 ms(10+) %IT=100
151Tm 4.17 s(11/2-) %EC+%B+=100
151m1Tm 6.6 s(1/2+) %EC+%B+=100
152Tm 8.0 s (2)- %EC+%B+=100
152m1Tm 5.2 s (9)+ %EC+%B+=100
153Tm 1.48 s(11/2-) %A=91 3, %EC+%B+=9 3
153m1Tm 2.5 s(1/2+) %A=92 3 , %EC+%B+=8 3
154Tm 8.1 s (2-) %EC+%B+=56 15, %A=44 15
154m1Tm 3.30 s (9+) %A=90 sys%EC+%B+=10 sys%IT=?
155Tm 21.6 s(11/2-) %EC+%B+=98.1 3, %A=1.9 3
155m1Tm 45 s (1/2+) %EC+%B+>92, %A<8
156Tm 83.8 s 2- %EC+%B+=99.936 10, %A=0.064 10
156m1Tm 19 s %A=?
157Tm 3.63 m 1/2+ %EC+%B+=100
158Tm 3.98 m 2- %EC+%B+=100
158m1Tm 20 ns (5+)
158m2Tm 16 ns (9-)
159Tm 9.13 m 5/2+ %EC+%B+=100
160Tm 9.4 m 1- %EC+%B+=100
160m1Tm 74.5 s 5 %EC+%B+=15 5, %IT=85 5
161Tm 33 m 7/2+ %EC+%B+=100
162Tm 21.70 m 1- %EC+%B+=100
162m1Tm 24.3 s 5+ %IT=82 4, %EC+%B+=18 4
163Tm 1.810 h 1/2+ %EC+%B+=100
164Tm 2.0 m1+ %EC+%B+=100
164m1Tm 5.1 m6- %IT ~ 80, %EC+%B+ ~ 20
165Tm 30.06 h1/2+ %EC+%B+=100
166Tm 7.70 h2+ %EC+%B+=100
166m1Tm 350 ms 6- %IT=100
167Tm 9.25 d 1/2+ %EC=100
168Tm 93.1 d 3(+) %EC+%B+=99.990 7, %B-=0.010 7
169Tm stable 1/2+ %Abundance=100
170Tm 128.6 d 1- %EC=0.131 10, %B-=99.869 10
171Tm 1.92 y 1/2+ %B-=100
172Tm 63.6 h 2- %B-=100
173Tm 8.24 h (1/2+) %B-=100
174Tm 5.4 m(4)- %B-=100
175Tm 15.2 m1/2+ %B-=100
176Tm 1.9 m(4+) %B-=100
177Tm 85 s (1/2+) %B-=100
178Tm
179Tm
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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