The main reason for larger number of oxi...

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

A

The radioactive nature of actinoids

B

Actinoid contraction

C

5f, 6d and 7s levels having comparable energies

D

4f and 5d levels being close in energies

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The correct Answer is:

C

It is a fact .

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