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The triad of nuclei that is isotonic is:...

The triad of nuclei that is isotonic is:

A

`._(6)C^(14), ._(7)N^(15), ._(9)F^(17)`,

B

`._(6)C^(12), ._(7)N^(14), ._(9)F^(19)`,

C

`._(6)C^(14), ._(7)N^(14), ._(9)F^(17)`,

D

`._(6)C^(14), ._(7)N^(14), ._(9)F^(19)`,

Text Solution

Verified by Experts

The correct Answer is:
A
Isotones have same number of neutrons.
Neutrons of `._(6)C^(14)=14-6=8`
`._(7)N^(15)=15-7=8`
`._(9)F^(17)=17-9=8`
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