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M n and M p represent mass of neutron and proton respectively. If an element having atomic mass M has N-neutron and Z-proton, then the correct relation will be
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- M < [NMn + ZMp]
- M > [NMn + ZMp]
- M = [NMn + ZMp]
- M = N[Mn + Mp]
Correct Option: A
Given : Mass of neutron = Mn
Mass of proton = Mp; Atomic mass of the element = M ; Number of neutrons in the element = N and number of protons in the element = Z. We know that the atomic mass (M) of any stable nucleus is always less than the sum of the masses of the constituent particles.
Therefore, M < [NMn + ZMp].
X is a neutrino, when β-particle is emitted.
