The actinoids exhibit more number of oxidation states in general than the lanthanoids. This is because
the orbitals extend further from the nucleus than the orbitals
the orbitals are more buried than the orbitals
there is a similarity between and orbitals in their angular part of the wave function
the actinoids are more reactive than the lanthanoids.
As we learnt in
Oxidation states -
The common oxidation state of lanthanoid is +3 low occasionally +2 and +4 ions in solution or in the solid compound are also obtained.
-
and
Oxidation states -
Ac shows +3 oxidation state generally but some Ac also, stable till +7 oxidation states.
-
Actinoids exhibits more number of exidation states in general than the Lanthanoids. This is because the 5f orbitals extended farther from the nucleus than the 4f orbitals.
Option 1)
the orbitals extend further from the nucleus than the orbitals
This option is correct
Option 2)
the orbitals are more buried than the orbitals
This option is incorrect
Option 3)
there is a similarity between and orbitals in their angular part of the wave function
This option is incorrect
Option 4)
the actinoids are more reactive than the lanthanoids.
This option is incorrect
Study 40% syllabus and score up to 100% marks in JEE