Mn and Mp represet the mass of neutron and proton respectively. An element having mass M has N neutron and Z-protons, then the correct relation will be:
A
M < {N.Mn+ Z.Mp}
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B
M > {N.Mn+ Z.Mp}
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C
M = {N.Mn+Z.Mp}
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D
M=N{Mn+ Mp}
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Solution
The correct option is A M < {N.Mn+ Z.Mp}
Given:
Mass of neutron =Mn
Mass of proton=Mp
Now, we know atomic mass(M) of any stable nucleus is always less than the sum of masses of constituent particles.