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4. Cerium exhibits both +3 and +4 oxidation states. Why? |
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Answer» Their ELECTRONEGATIVE value is nearly equal to s-block ELEMENTS. So they can LOSE ELECTRONS to form cation. When CERIUM loses 4 e-, it will acquire fully field electronic configuration of Xenon (2,8,18,18,8). ... That is why Cerium exhibits +4 oxidation state.Explanation: |
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