Identify the pair in which both elements typi | vedclass

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Question

(A) The oxidation state of an element is determined by its electronic configuration. $Sc$ $([Ar] 3d^1 4s^2)$ typically shows an oxidation state of $+3

Vedclass · Accepted Answer

$Sc$ and $Zn$

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(A) The oxidation state of an element is determined by its electronic configuration. $Sc$ $([Ar] 3d^1 4s^2)$ typically shows an oxidation state of $+3$. $Zn$ $([Ar] 3d^{10} 4s^2)$ typically shows an oxidation state of $+2$. Both $Sc$ and $Zn$ exhibit only one stable oxidation state in their compounds. $Cu$ shows $+1$ and $+2$,$Ag$ shows $+1$ and $+2$,and $Au$ shows $+1$ and $+3$. Therefore,the pair is $Sc$ and $Zn$.

Identify the pair in which both elements typically exhibit only one oxidation state.

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