If iron has an electron configuration of 1s2,2s2,2p6,3s2,3p6,4s2,3d6 how does it form ions?
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how does it form ions with oxidation numbers of 2+ and 3+
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Answer:
be cause it loses the two 4s electrons then the 6th d electron which has an up spin, all other d's have a down spin.
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