AIPMT 2005 Physics and Chemistry Paper

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Question : 82 of 100

Marks: +1, -0

The main reason for larger number of oxidation states exhibited by the actinoids than the corresponding lanthanoids, is :-

Lesser energy difference between 5f and 6d orbitals than between 4f and 5d orbitals
More energy difference between 5f and 6d orbitals than between 4f and 5d orbitals
Greater reactive nature of the actinoids than the lanthanoids
Larger atomic size of actinoids than the lanthanoids

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