1.

Larger no. oxidation states are exhibited by Actinides than those by Lanthanides. The main reason being.

Answer»

Lesser energy differene between 5f and 6D than 4f and 5D ORBITAL.
POOR shielding of 5d-orbital than 6d orbital.
LOW ionization energy of Lanthanides.
Penetration of d is more than 5d orbital. 3

Answer :A


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