how many unpaired electron arefe+2
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4 unpaired electrons
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Answer:4 unpaired electrons
Explanation:
Since oxidation state is 2+ , means , 2 electrons from 4s shell are taken out and 3d orbital has capacity of 10 electrons but only 5 are filled . 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
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