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Question: Answered & Verified by Expert
An artificial radioactive isotope gave ${ }_{7}^{14} \mathrm{~N}$ after two successive $\beta$-particle emissions. The number of neutrons in the parent nucleus must be
ChemistryChemical KineticsCOMEDKCOMEDK 2016
Options:
  • A 5
  • B 7
  • C 9
  • D 14
Solution:
2242 Upvotes Verified Answer
The correct answer is: 9



$\therefore$ The number of neutrons in parent nucleus $=14-5$ $=9$

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