Question
More number of oxidation states are exhibited by the actinides than by the lanthanides. The main reason for this is
A.
more energy difference between $$5f$$ and $$6d$$ - orbitals than that between $$4f$$ and $$5d$$ - orbitals
B.
lesser energy difference between $$5f$$ and $$6d$$ - orbitals than that between $$4f$$ and $$5d$$ - orbitals
C.
greater metallic character of the lanthanides than that of the corresponding actinides
D.
more active nature of the actinides
Answer :
lesser energy difference between $$5f$$ and $$6d$$ - orbitals than that between $$4f$$ and $$5d$$ - orbitals
Solution :
More number of oxidation states are exhibited by the actinides than by the corresponding lanthanides due to lesser energy difference between $$5f$$ and $$6d$$ orbitals than that between $$4f$$ and $$5d$$ - orbitals.