Which of the following does not show more tha | vedclass

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(D) The transition elements exhibit variable oxidation states due to the participation of $(n-1)d$ and $ns$ electrons in bonding. $Sc$ (Scandium) has

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$Sc$

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(D) The transition elements exhibit variable oxidation states due to the participation of $(n-1)d$ and $ns$ electrons in bonding. $Sc$ (Scandium) has the atomic number $21$ and its electronic configuration is $[Ar] 3d^1 4s^2$. It only exhibits a $+3$ oxidation state because after losing three electrons,it achieves the stable noble gas configuration of Argon $([Ar])$. $Mn$,$Cr$,and $Fe$ are transition metals that exhibit multiple oxidation states.

Which of the following does not show more than one oxidation state?

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