Cuadro de texto:   -  Atomic Mass: 209.0019440 ± 0.0001340 amu -  Excess Mass: 1811.000 ± 125.000 keV -  Binding Energy: 1616249.000 ± 125.000 keV -  Beta Decay Energy: B- -7103.000 ± 273.000 keV -  Spin: 5/2- -  Half life: 4.6 s -  Mode of decay: Alpha to Rn-205                                 º  Branch ratio: ~90.00 %                                 º  Decay energy: 7.150 MeV -  Mode of decay: EC to Fr-209                                 º  Branch ratio: ~10.00 %                                 º  Decay energy: 5.610 MeV -  Possible parent nuclides:    Alpha from Th-213      

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

                       Home                                 Index                                  Alphabetical List of Elements                              Radionuclide Chart