How many unpaired electron are contained in the electronic configuration of atomic iron (Fe=26)
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Fe has configuration of 4s2 ,3d6 after losing of 2 electrons it become Fe2+ and have only 3d6 configuration having 4 unpaired electrons and one paired electron . There are 4 unpaired electrons in d subshell in Fe+2. the p.n of Fe is 26 .
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Here it 4 unpaired electrons and 1 pair of eletron
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