More number of oxidation states are exhibited by the actinides than those by the lanthanides, the main reason being

Options

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. more reactive nature of the actionoids than the lanthanoids
D. 4 orbitals more diffused than the `5f` orbitals

Answer

1

Explanation

There is very small energy difference between `5f` and `6f` orbitals in actinoids than those of between `4f` and `5d` orbitals .Hence , electrons present in `5f` and `6d` orbitals can take part in bonding.