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AIEEE 2008 Solved Paper

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Question : 24

Total: 104

Larger number of oxidation states are exhibited by the actinoids than those by the lanthanoids, the main reason being

4f orbitals more diffused than the 5f orbitals
lesser energy difference between 5f and 6d than between 4f and 5d orbitals
more energy difference between 5f and 6d than between 4f and 5d orbitals
more reactive nature of the actinoids than the lanthanoids

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