Chemistry - f-block Question with Solution | TestHub

The actinoids show a greater range of oxidation states than the lanthanoids because the 5f, 6d and 7s levels are of comparable energies.

5 f electrons can participate in bonding to a far greater extent than that 4 f orbitals because unlike 4 f orbitals, 5f orbitals are not as buried as 4f orbitals.

Lanthanoid contraction is more important than the actinoid contraction because the chemistry of elements succeeding the actinoids are much less known at the present time.

The magnetic properties of the actinoids are less complex than the lanthanoids.