1.

A radiaoactive nucleus (initial mass number `A` and atomic number `Z` emits `3 alpha`- particles and 2 positrons The ratio of number of neutrons to that of proton in the final nucleus will beA. `(A-Z-8)/(Z-4)`B. `(A-Z-4)/(Z-8)`C. `(A-Z-12)/(Z-4)`D. `(A-Z-4)/(Z-2)`

Answer» Correct Answer - B


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