Outermost electronic configuration of a group-13 element E is 4s² 4p¹. The electronic configuration of an element of p-block period-five placed diagonally to element, E is

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$[Ar {3 d}^{10} 4 s^{2} 4 p^{2}$

$[Xe] 5 d^{10} 6 s^{2} 6 p^{2}$

$[Kr] 3 d^{10} 4 s^{2} 4 p^{2}$

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

answer is D.

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Outermost electronic configuration of a group-13 element E is 4s² 4p¹. The electronic configuration of an element of p-block period-five placed diagonally to element, E is $[Kr] 4 d^{10} 5 s^{2} 5 p^{2}$

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