JEE Main & Advanced Chemistry Structure of Atom / परमाणु संरचना Question Bank Quantum number, Electronic configuration and Shape of orbitals

  • question_answer
    Electronic configuration of ferric ion is    [RPET 2000]

    A)                 \[[Ar]\,3{{d}^{5}}\]        

    B)                 \[[Ar]\,3{{d}^{7}}\]

    C)                 \[[Ar]\,3{{d}^{3}}\]        

    D)                 \[[Ar]\,3{{d}^{8}}\]

    Correct Answer: A

    Solution :

               \[F{{e}_{26}}=[Ar]\,3{{d}^{6}}4{{s}^{2}}\]                                 \[F{{e}^{3+}}=[Ar]\,3{{d}^{5}}4{{s}^{0}}.\]

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