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maximum number of unpaired electrons o , mg , p ,F
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Answer:
Fe2+ has the maximum number of unpaired d-electrons.
Explanation:
Fe2+ has the maximum number of unpaired d-electrons.
Zn(30)=[Ar]3d10,4s2.
Fe(26)=[Ar]3d6,4s2.
Ni(28)=[Ar]3d8,4s2.
Cu(29)=[Ar]3d10,4s1.
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