9th Class Science Structure of the Atom Question Bank Atomic Structure IIT JEE Objective Problems

  • question_answer
    Which pair is isoelectronic?   (AFMC 198(c)

    A)  Ar and\[Cl\]     

    B)  \[\text{N}{{\text{a}}^{+}}\]and Ne

    C)  \[\text{N}{{\text{a}}^{+}}\]and Mg       

    D)  Mg and Ne

    Correct Answer: B

    Solution :

      Not Available


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