Q. Which of the following represents an ion?

A) a particle having 19 protons, 21 neutrons, and 19 electrons

B) a particle having 9 protons, 9 neutrons, and 10 electrons

C) a particle having 1 proton, 3 neutrons, and 1 electron

D) a particle having 14 protons, 14 neutrons, and 14 electrons

✔ Correct Answer: a particle having 9 protons, 9 neutrons, and 10 electrons

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