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Cuadro de texto:   -  Atomic Mass: 235.0439231 ± 0.0000021 amu -  Excess Mass: 40914.062 ± 1.970 keV -  Binding Energy: 1783870.285 ± 1.996 keV -  Beta Decay Energy: B- -123.716 ± 0.869 keV -  Atomic Percent Abundance: 0.720% -  Spin: 7/2- -  Half life: 703800000 years -  Mode of decay: Alpha to Th-231 º  Decay energy: 4.679 MeV -  Mode of decay: SF º  Branch ratio: 7.0E-9 % º  Mode of decay: Ne º  Branch ratio: 8E-10 % -  Meta state at 0.000 Mev -  Spin: 1/2+ -  Half life: ~25 min -  Mode of decay: IT to U-235 -  Possible parent nuclides:                                                                Beta from Pa-235                                                                Electron capture from Np-235                                                                Alpha from Pu-239