question_answer

The main reason for larger number of oxidation states exhibited by the actinoids than the corresponding lanthanoids is [CBSE PMT 2005]

A) Lesser energy difference between 5f and 6d orbitals than between 4f and 5d orbitals

B) Larger atomic size of actinoids than the lanthanoids

C) More energy difference between 5f and 6d orbitals than between 4f and 5d orbitals

D) Greater reactive nature of the actinoids than the lanthanoids