Question
If M (A, Z), MP and Mn denote the masses of the nucleus 
proton and neutron respectively in units of u (1 u = 931.5 MeV/c2) and BE represents its binding energy in MeV, then
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M (A,Z) = ZMp + (A-Z)Mn - BE/c2
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M (A,Z) = ZMp + (A-Z)Mn + BE
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M (A,Z) = ZMp + (A-Z)Mn - BF
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M (A,Z) = ZMp + (A-Z)Mn + BE/c2
Solution
A.
M (A,Z) = ZMp + (A-Z)Mn - BE/c2
