Which of the following pairs of species has t | vedclass

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(B) To determine the electronic configuration of the given species:$1$. $Co^{3+}$ $(Z=27)$: The ground state configuration of $Co$ is $[Ar] 3d^{7} 4s^

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$Co^{3+}$ and $Ni^{4+}$

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(B) To determine the electronic configuration of the given species:$1$. $Co^{3+}$ $(Z=27)$: The ground state configuration of $Co$ is $[Ar] 3d^{7} 4s^{2}$. Removing $3$ electrons gives $Co^{3+} = [Ar] 3d^{6} 4s^{0}$.$2$. $Ni^{4+}$ $(Z=28)$: The ground state configuration of $Ni$ is $[Ar] 3d^{8} 4s^{2}$. Removing $4$ electrons gives $Ni^{4+} = [Ar] 3d^{6} 4s^{0}$.Since both $Co^{3+}$ and $Ni^{4+}$ have the same electronic configuration $(3d^{6})$,option $(B)$ is correct.

Which of the following pairs of species has the same electronic configuration?

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