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Isotopes of Praseodymium (Z=59)

Click on an isotope to get more information about its decay
Isotope Half-life Spin Parity Decay Mode(s) or Abundance
121Pr 1.4 s %EC+%B+=100, %ECP=?
122Pr
123Pr
124Pr 1.2 s %EC+%B+=100, %ECP=?
125Pr 3.3 s %EC+%B+=100
126Pr 3.14 s (3,4,5) %EC+%B+=100, %ECP=?
127Pr 4.2 s (11/2-) %EC+%B+=100
128Pr 3.1 s 4,5,6 %EC+%B+=100, %ECP=?
129Pr 30 s(3/2+) %EC+%B+=100
130Pr 40.0 s %EC+%B+=100
131Pr 1.53 m (3/2+) %EC+%B+=100
131m1Pr 5.7 s(11/2-) %IT=95 , %EC+%B+=5
132Pr 1.6 m %EC+%B+=100
133Pr 6.5 m (3/2+) %EC+%B+=100
134Pr 17 m 2- %EC+%B+=100
134m1Pr 11 m (5-) %EC+%B+=100
135Pr 24 m3/2(+) %EC+%B+=100
136Pr 13.1 m2+ %EC+%B+=100
137Pr 1.28 h5/2+ %EC+%B+=100
138Pr 1.45 m1+ %EC+%B+=100
138m1Pr 2.12 h7- %EC+%B+=100
139Pr 4.41 h5/2+ %EC+%B+=100
140Pr 3.39 m1+ %EC+B+=100
141Pr stable5/2+ %Abundance=100
142Pr 19.12 h2- %B-=99.9836 8, %EC=0.0164 8
142m1Pr 14.6 m5- %IT=100
143Pr 13.57 d7/2+ %B-=100
144Pr 17.28 m0- %B-=100
144m1Pr 7.2 m3- %IT=99.93, %B-=0.07
145Pr 5.984 h7/2+ %B-=100
146Pr 24.15 m(2)- %B-=100
147Pr 13.4 m (3/2+) %B-=100
148Pr 2.27 m1- %B-=100
148m1Pr 2.0 m(4) %B-=100
149Pr 2.26 m(5/2+) %B-=100
150Pr 6.19 s (1)- %B-=100
151Pr 18.90 s(3/2-) %B-=100
152Pr 3.63 s (4-) %B-=100
153Pr 4.28 s %B-=100
154Pr 2.3 s (3+,2+) %B-=100
155Pr
156Pr
157Pr
158Pr
159Pr
  Last update on
February 15, 2012