A transition element X has configuration $\left[ {{\rm{Ar}}} \right]3{d^5}$ in its +3 oxidation state. Its atomic number is:

JEE CHEMISTRY MCQ: STRUCTURE OF ATOM

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A transition element X has configuration

\left[ {\mathrm{Ar}} \right]3{d^5}

in its +3 oxidation state. Its atomic number is:

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Correct option: C

Option C (26) is correct because the element with the given electronic configuration in the +3 oxidation state has 26 electrons.

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n^{\text {th }}

\mathrm{A}

\times 10^{12}

\frac{1}{{ }^{\prime} \mathrm{B}^{\prime}}

\ell = 1,\,\,m = 0

1.25 \times {10^{ - 13}} \times {A^{1/3}}\mathrm{cm}.