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For a nucleus to be stable, the correct relation between neutron number `N` and proton number `Z` is.

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For a nucleus to be stable, the correct relation between neutron number `N` and proton number `Z` is.
A. `N gt Z`
B. `N = Z`
C. `N lt Z`
D. `N ge Z`
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Correct Answer - D
(d) For stability in case of lighter nuclei, `(N)/(Z) = 1` and for heavier nuclei, `(N)/(Z) gt 1`.
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