Identify the outer electronic configuration o | vedclass

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(D) The $first$ transition series corresponds to the $3d$ series,which starts with Scandium $(Sc)$.Scandium has an atomic number of $21$.The electroni

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$[Ar] 3d^1 4s^2$

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(D) The $first$ transition series corresponds to the $3d$ series,which starts with Scandium $(Sc)$.Scandium has an atomic number of $21$.The electronic configuration is determined by filling the $1s, 2s, 2p, 3s, 3p, 4s,$ and $3d$ orbitals.$Sc (Z=21) = 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^1$.In terms of the noble gas core,this is written as $[Ar] 3d^1 4s^2$.

Identify the outer electronic configuration of the $first$ element of the $first$ transition series.

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