Cuadro de texto:  
-  Atomic Mass: 137.9235400 ± 0.0003200 amu 
-  Excess Mass: -71222.000 ± 298.000 keV 
-  Binding Energy: 1136559.000 ± 298.000 keV 
-  Beta Decay Energy: B- -9231.000 ± 499.000 keV 
-  Spin: 0+ 
-  Half life: 3.1 min 
-  Mode of decay: Electron capture to Pm-138 
º  Decay energy: 3.900 MeV 
-  Possible parent nuclides: 
                                                               Electron capture from Eu-138 
                                                               EC + P from Gd-139 
 

   

   

 

 

 

 

 

 

 

 

 

 

 

 

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