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9th Class Science Structure of the Atom Question Bank Structure of the Atom

  • question_answer
    An atom and its ion differ in the number of

    A)  electrons            

    B)         protons

    C)  neutrons          

    D)         nucleons

    Correct Answer: A

    Solution :

     An atom forms an ion either by losing or gaining electrons. So, they differ in the number of electrons.


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