Which of the following gaseous ions has the m | vedclass

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(D) The electronic configurations of the given ions are as follows:$Fe^{2+} (Z=26) = [Ar] 3d^6$. Number of unpaired electrons = $4$.$Co^{3+} (Z=27) =

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$Fe^{3+}$

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(D) The electronic configurations of the given ions are as follows:$Fe^{2+} (Z=26) = [Ar] 3d^6$. Number of unpaired electrons = $4$.$Co^{3+} (Z=27) = [Ar] 3d^6$. Number of unpaired electrons = $4$.$Co^{2+} (Z=27) = [Ar] 3d^7$. Number of unpaired electrons = $3$.$Fe^{3+} (Z=26) = [Ar] 3d^5$. Number of unpaired electrons = $5$.Thus,$Fe^{3+}$ has the maximum number of unpaired electrons.

Which of the following gaseous ions has the maximum number of unpaired electrons?

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