An artifical radioactive isotope gave ""_(7)^(14)N after two successiv – InterviewSolution

1.	An artifical radioactive isotope gave ""_(7)^(14)N after two successive beta-particle emissions. The number of neutrons in the parent nucleus must be
Answer» 9 14 5 7 Solution :`._(X)X^(y) OVERSET(2beta)rarr ._(7)N^(14)` `._(x =7-2)X^(y =14) = ._(5)X^(14)` Total no. of NEUTRONS `= 14 - 5 = 9`

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