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USNDP

19B (1978AJ03)


(Not illustrated)

The mass of 19B excess is predicted to be 59.92 MeV (1974TH01), 60.19 MeV (1976JA23, 1976WA18). Assuming the atomic mass excess to be 60.1 MeV, 19B is stable with respect to breakup into 18B + n by 1.8 MeV and into 17B + 2n by 0.4 MeV [see 18B]. See also (1972TH13, 1974BO05) and (1975BE31, 1976CA1R; theor.).