Cuadro de texto:   -  Atomic Mass: 229.0320886 ± 0.0000097 amu -  Excess Mass: 29890.335 ± 9.028 keV -  Binding Energy: 1747248.429 ± 9.033 keV -  Beta Decay Energy: B- -1311.112 ± 11.245 keV -  Spin: (5/2+) -  Half life: 1.50 d -  Mode of decay: Electron capture to Th-229 º  Branch ratio: 99.52 % º  Decay energy: 0.316 MeV -  Mode of decay: Alpha to Ac-225 º  Branch ratio: 0.48 % º  Decay energy: 5.841 MeV -  Possible parent nuclides:                                                                Electron capture from U-229                                                                Alpha from Np-233

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