Cuadro de texto: 2-helium-4   Cuadro de texto:   -  Atomic Mass: 4.0026032 ± 0.0000000 amu -  Excess Mass: 2424.911 ± 0.001 keV -  Binding Energy: 28295.673 ± 0.005 keV -  Beta Decay Energy: B- -22895.261 ± 212.132 keV -  Atomic Percent Abundance: 99.999863%(3 -  Spin: 0+ -  Stable Isotope -  Possible parent nuclides:                                             Neutron emission from He-5                                             Proton emission from Li-5                                             2 Proton from Be-6                                             EC + 2 Alpha from N-12

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

        

 

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