Which of the following transition metals can | vedclass

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(A) The oxidation state of a transition metal depends on the number of unpaired electrons and the availability of $d$-orbitals. Among the given option

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$Cr$

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(A) The oxidation state of a transition metal depends on the number of unpaired electrons and the availability of $d$-orbitals. Among the given options,Chromium $(Cr)$ has the electronic configuration $[Ar] 3d^5 4s^1$. $Cr$ can lose all $6$ valence electrons to exhibit a maximum oxidation state of $+6$ (e.g.,in $CrO_4^{2-}$ or $Cr_2O_7^{2-}$). $Co$,$Ni$,and $Cu$ generally exhibit lower maximum oxidation states compared to $Cr$ in their common compounds.

Which of the following transition metals can exhibit the highest oxidation state?

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