Cuadro de texto:   -  Atomic Mass: 221.0155757 ± 0.0000542 amu -  Excess Mass: 14508.712 ± 50.495 keV -  Binding Energy: 1699624.176 ± 50.496 keV -  Beta Decay Energy: B- -2417.928 ± 51.397 keV -  Half life: 52 ms -  Mode of decay: Alpha to Fr-217 º  Decay energy: 7.780 MeV -  Possible parent nuclides:    Alpha from Pa-225

        

 

 

 

 

 

 

 

 

 

 

 

 

                    Home                                 Index                                  Alphabetical List of Elements                              Radionuclide Chart