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Cuadro de texto:   -  Atomic Mass: 240.0565857 ± 0.0000056 amu -  Excess Mass: 52709.264 ± 5.193 keV -  Binding Energy: 1812431.697 ± 5.203 keV -  Beta Decay Energy: B- 388.346 ± 15.793 keV -  Spin: 0+ -  Half life: 14.1 h -  Mode of decay: Beta to Np-240 º  Decay energy: 0.388 MeV -  Possible parent nuclides:    Alpha from Pu-244