Which of the following metal ions has the max | vedclass

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(D) To determine the number of unpaired electrons,we look at the electronic configuration of the metal ions:$Fe^{+2}$ $(Z=26)$: $[Ar] 3d^6$ $\rightarr

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$Mn^{+2}$

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(D) To determine the number of unpaired electrons,we look at the electronic configuration of the metal ions:$Fe^{+2}$ $(Z=26)$: $[Ar] 3d^6$ $\rightarrow$ $4$ unpaired electrons.$Co^{+2}$ $(Z=27)$: $[Ar] 3d^7$ $\rightarrow$ $3$ unpaired electrons.$Ni^{+2}$ $(Z=28)$: $[Ar] 3d^8$ $\rightarrow$ $2$ unpaired electrons.$Mn^{+2}$ $(Z=25)$: $[Ar] 3d^5$ $\rightarrow$ $5$ unpaired electrons.Thus,$Mn^{+2}$ has the maximum number of unpaired electrons $(5)$.

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

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