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JEE Main & Advanced Chemistry Structure of Atom / परमाणु संरचना Question Bank Atomic number, Mass number Atomic species

  • question_answer
    \[N{{a}^{+}}\]ion is isoelectronic with     [CPMT 1990]

    A)                 \[L{{i}^{+}}\]     

    B)                 \[M{{g}^{+2}}\]

    C)                 \[C{{a}^{+2}}\] 

    D)                 \[B{{a}^{+2}}\]

    Correct Answer: B

    Solution :

               Electrons in \[N{{a}^{+}}=11-1=10\]                                 Electrons in \[M{{g}^{2+}}=12-2=10\]


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