Which one of the following has the maximum nu | vedclass

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Question

(D) The number of unpaired electrons in each ion is calculated as follows:$Mg^{2+} (Z=12): 1s^2, 2s^2 2p^6, 3s^0 \implies 0 	ext{ unpaired electrons}

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$Fe^{2+}$

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(D) The number of unpaired electrons in each ion is calculated as follows:$Mg^{2+} (Z=12): 1s^2, 2s^2 2p^6, 3s^0 \implies 0 	ext{ unpaired electrons}$$Ti^{3+} (Z=22): [Ar] 3d^1 \implies 1 	ext{ unpaired electron}$$V^{3+} (Z=23): [Ar] 3d^2 \implies 2 	ext{ unpaired electrons}$$Fe^{2+} (Z=26): [Ar] 3d^6 \implies 4 	ext{ unpaired electrons}$Thus,$Fe^{2+}$ has the maximum number of unpaired electrons.

Which one of the following has the maximum number of unpaired electrons?

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