In the 3d series of d-block elements,which of | vedclass

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(D) In the $3d$ transition series,as we move from left to right,the effective nuclear charge $(Z_{eff})$ increases,which causes the atomic size to dec

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$Sc$

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(D) In the $3d$ transition series,as we move from left to right,the effective nuclear charge $(Z_{eff})$ increases,which causes the atomic size to decrease.Although $Zn$ shows a slight increase in size due to electron-electron repulsions,the element with the largest atomic radius in the $3d$ series is $Sc$ $(Z=21)$,as it has the lowest effective nuclear charge among the given elements.

In the $3d$ series of $d-$block elements,which of the following elements has the maximum atomic size?

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