Nuclear Chemistry Question 18

Question: The triad of nuclei that is isotonic is

[IIT 1988; DCE 2000;MP PMT 2004]

Options:

A) $ _6C^{14}, _7N^{15}, _9F^{17} $

B) $ _6C^{12}, _7N^{14}, _9F^{19} $

C) $ _6C^{14}, _7N^{14}, _9F^{17} $

D) $ _6C^{14}, _7N^{14}{,_9}F^{19} $

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Answer:

Correct Answer: A

Solution:

Isotones have same number of neutrons.