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

  • question_answer
    What do oxygen atom and oxide ion have in common?

    A)  Same size

    B)  Same number of electrons

    C)  Same electronic configuration

    D)  Same number of protons  

    Correct Answer: D

    Solution :

     Oxide ion is formed when oxygen gains two electrons \[({{O}^{2+}})\].Gain or loss of electrons does not change the proton number. Hence, the number of protons remain the same for an atom and an ion.                        


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