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  5. Structure of the Atom

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

  • question_answer
    Element \['X'\] contains \[9\] protons, \[10\] electrons and \[11\] neutrons. What is\['X'\]?

    A)  A neutral atom

    B)         An isotope

    C)  A cation          

    D)         An anion  

    Correct Answer: D

    Solution :

    \[X\] is a uni-negative ion(anion), because the number of electrons in it exceeds the number of protons by \[1\].


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