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NEET Sample Paper NEET Sample Test Paper-77

  • question_answer
    Principal quantum number defines the principal shell in which electron is revolving around the nucleus and Azimuthal quantum number described the name of the subshell and the shape of orbitals. The values of principal and Azimuthal quantum number for 23rd electron present in iron atom are.

    A)  3 and 2                       

    B)  3 and 1

    C)  4 and 1                       

    D)  4 and 0

    Correct Answer: A

    Solution :

    Electronic configuration of Fe is \[[Ar]\,\,4{{s}^{2}}3{{d}^{6}}\] The 23rd electron will enter in 3d subshell Hence, value of n for \[3d =3\] value of l for \[3d =2\]


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