Which of the following has maximum number of unpaired electrons?
Mg2+
Ti3+
Fe2+
Cu2+
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Answer:
fe+2 is right ans because valance electron are 3d6,4s2 after removing electron unpaired electron are 4
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MC MG square plus one square to square to P6 member unpaired electrons ti 3 + 1 square to a square 666 3D 11 pair electrons V3 place 11 EST to square
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