Question

Larger number of oxidation states are exhibited by the actinoids than those of lanthanoids. The reason is:

• A. Lesser energy difference between 5f and 6d than between 4f and 5d orbitals
• B. More energy difference between 5f and 6d than between 4f and 5d orbitals
• C. 4f orbitals are more diffused than 5f orbitals
• D. Highly reactive nature of the actinoids

Hint:

The larger number of oxidation states in actinoids is due to the relatively smaller energy difference between the 5f and 6d orbitals, allowing for more flexibility in electron configuration.

Answer 1

The Correct Option is A