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Where a stationary neutron combines with a proton to form a deuteron, a gamma ray of...

Where a stationary neutron combines with a proton to form a deuteron, a gamma ray of energy 2.2233 MeV is emitted. The masses of the proton and the deuteron are 1.007276467 u and 2.013553212 u, respectively. Determine the mass of the neutron, stating any laws used and defining variables. Ans 1.0087 u

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