Cuadro de texto:   -  Atomic Mass: 217.0039146 ± 0.0000053 amu -  Excess Mass: 3646.384 ± 4.955 keV -  Binding Energy: 1680548.273 ± 4.964 keV -  Beta Decay Energy: B- -653.813 ± 7.548 keV -  Spin: 9/2+ -  Half life: 0.54 ms -  Mode of decay: Alpha to Po-213 º  Decay energy: 7.889 MeV -  Possible parent nuclides:     Alpha from Ra-221

 

 

 

 

 

 

 

 

 

 

 

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