Outermost electronic configuration of a group-13 element $E$ is $4{s^2}4{p^1}$. The electronic configuration of an element of $p$-block period-five placed diagonally to element, $E$ is

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

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Outermost electronic configuration of a group-13 element

E

4{s^2}4{p^1}

. The electronic configuration of an element of

p

-block period-five placed diagonally to element,

E

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Correct option: D

[Kr]4{d^{10}}5{s^2}5{p^2}

The correct answer is

[Kr]4{d^{10}}5{s^2}5{p^2}

(D) because the element E is Gallium (Ga) in period 4, group 13. The element diagonally placed to Ga is Germanium (Ge) in period 5, group 14, with the electronic configuration

[Kr]4{d^{10}}5{s^2}5{p^2}

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

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