NEET UG CHEMISTRY MCQ: CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

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Remembering +4 | -1

3 d

-transition series of elements starts with

\mathrm{Sc}

and ends with

\mathrm{Zn}

. The electronic configuration of

\mathrm{Sc}

and

\mathrm{Zn}

are respectively.

View answer and explanation

Correct option: B

[\mathrm{Ar}] 3 d^1 4 s^2

and

[\mathrm{Ar}] 3 d^{10} 4 s^2

Option B is correct because Scandium (Sc) has the electronic configuration [Ar]3d¹4s², and Zinc (Zn) has the electronic configuration [Ar]3d¹⁰4s².

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