Isotopes of Lutetium (Z=71)

Click on an isotope to get more information about its decay
Isotope Half-life Spin Parity Decay Mode(s) or Abundance
150Lu 35 ms %P=80 20, %EC+%B+=20 20
151Lu 88 ms (11/2-) %P=70 30
152Lu 0.7 s(5-,6-) %EC+%B+=100, %ECP=15 7
153Lu 0.9 s 11/2- %A ~ 70 , %EC+%B+ ~ 30
154Lu (2-)
154m1Lu 1.12 s (9+) %EC+%B+ ~ 100
154m2Lu 35 us (17+)
155Lu 140 ms (1/2+,3/2+) %A=?
155m1Lu 68 ms (11/2-) %A=79 4, %EC+%B+=21 4
155m2Lu 2.60 ms (25/2-) %A ~ 100
156Lu 198 ms (9+) %A ~ 95 , %EC+%B+=5
156m1Lu 494 ms (2-) %A=79 4, %EC+%B+=21 4
157Lu 6.8 s (1/2+,3/2+) %A > 0
157m1Lu 4.79 s (11/2-) %A=6 2 , %EC+%B+=94 2
158Lu 10.6 s %A=0.91 20 , %EC+%B+=99.09 20
159Lu 12.1 s %EC+%B+=99.96 sys%A=0.04 sys
160Lu 36.1 s %EC+%B+=100, %A < 1E-4
160m1Lu 40 s %EC+%B+ < 100, %A=?
161Lu 77 s (5/2+) %EC+%B+=100
161m1Lu 7.3 ms (9/2-) %IT=100
162Lu 1.37 m(1-) %EC+%B+=100
162m1Lu 1.5 m(4-) %EC+%B+ < 100
162m2Lu 1.9 m %EC+%B+ < 100
163Lu 238 s(1/2-) %EC+%B+=100
164Lu 3.14 m %EC+%B+=100
165Lu 10.74 m(7/2+) %EC+%B+=100
165m1Lu 12 m1/2+
166Lu 2.65 m(6-) %EC+%B+=100
166m1Lu 1.41 m(3-) %EC+%B+=58 5, %IT=42 5
166m2Lu 2.12 m(0-) %EC+%B+>80, %IT<20
167Lu 51.5 m 7/2+ %EC+%B+=100
168Lu 5.5 m (6-) %EC+%B+=100
168m1Lu 6.7 m 3+ %EC+%B+ > 95, %IT < 5
169Lu 34.06 h 7/2+ %EC+%B+=100
169m1Lu 160 s 1/2- %IT=100
170Lu 2.012 d0+ %EC+%B+=100
170m1Lu 0.67 s (4)- %IT=100
171Lu 8.24 d 7/2+ %EC+%B+=100
171m1Lu 79 s 1/2- %IT=100
172Lu 6.70 d4- %EC+%B+=100
172m1Lu 3.7 m 1- %IT=100
173Lu 1.37 y 7/2+ %EC=100
174Lu 3.31 y(1)- %EC+%B+=100
174m1Lu 142 d (6)- %IT=99.38 2, %EC=0.62 2
175Lu stable7/2+ %Abundance=97.41 2
176Lu 3.78e10 y 7- %Abundance=2.59 2, %B-=100
176m1Lu 3.635 h 1- %B-=99.905 16, %EC=0.095 16
177Lu 6.734 d7/2+ %B-=100
177m1Lu 160.4 d 23/2- %B-=78.3 6, %IT=21.7 6
178Lu 28.4 m 1(+) %B-=100
178m1Lu 23.1 m (9-) %B-=100
179Lu 4.59 h7/2(+) %B-=100
179m1Lu 3.1 ms 1/2(+) %IT=100
180Lu 5.7 m(5)+ %B-=100
181Lu 3.5 m (7/2+) %B-=100
182Lu 2.0 m (0,1,2) %B-=100
183Lu 58 s (7/2+) %B-=100
184Lu 20 s(2+) %B-=100
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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