Isotopes of Erbium (Z=68)

Click on an isotope to get more information about its decay
Isotope Half-life Spin Parity Decay Mode(s) or Abundance
144Er 0+
145Er 0.9 s(11/2-) %EC+%B+=100, %ECP=?
146Er 1.7 s0+ %EC+%B+=100, %ECP=?
147Er 2.5 s(11/2-) %EC+%B+=100, %ECP=?
147m1Er 2.5 s(1/2+) %EC+%B+=100, %ECP=?
148Er 4.6 s0+ %EC+%B+=100, %ECP ~ 0.15
149Er 4 s (1/2+) %EC+%B+=100, %ECP=7 2
149m1Er 8.9 s (11/2-) %EC+%B+=96.5 7, %IT=3.5 7, %ECP=0.18 7
150Er 18.5 s 0+ %EC+%B+=100
151Er 23.5 s(7/2-) %EC+%B+=100
151m1Er 0.58 s(27/2-) %IT=95.3 3, %EC+%B+=4.7 3
152Er 10.3 s 0+ %EC+%B+=10 4, %A=90 4
153Er 37.1 s(7/2-) %A=53 3, %EC+%B+=47 3
154Er 3.73 m 0+ %EC+%B+=99.53 13, %A=0.47 13
155Er 5.3 m 7/2- %EC+%B+=99.978 7, %A=0.022 7
156Er 19.5 m 0+ %EC+%B+=100
157Er 18.65 m 3/2- %EC+%B+=100
157m1Er 76 ms (9/2+) %IT=100
158Er 2.29 h0+ %EC=100
159Er 36 m 3/2- %EC+%B+=100
160Er 28.58 h0+ %EC=100
161Er 3.21 h 3/2- %EC+%B+=100
162Er stable 0+ %Abundance=0.14 1
163Er 75.0 m5/2- %EC+%B+=100
164Er stable0+ %Abundance=1.61 2
165Er 10.36 h5/2- %EC=100
166Er stable0+ %Abundance=33.6 2
167Er stable 7/2+ %Abundance=22.95 15
167m1Er 2.269 s 1/2- %IT=100
168Er stable 0+ %Abundance=26.8 2
169Er 9.40 d 1/2- %B-=100
170Er stable0+ %Abundance=14.9 2
171Er 7.516 h 5/2- %B-=100
172Er 49.3 h0+ %B-=100
173Er 1.4 m (7/2-) %B-=100
174Er 3.3 m0+ %B-=100
175Er 1.2 m (9/2+) %B-=100
176Er 0+
177Er
Isotope Explorer Nuclear Structure and Decay Data
8th Edition of the Table of Isotopes
Isotopes Project Home Page
 Lawrence Berkeley National Laboratory
Return to Exploring the Isotopes