Chemistry - f-block Question with Solution | TestHub

4 f orbitals more diffused than the $5f$ orbitals

lesser energy difference between $5f$ and $6d$ than between $4f$ and $5d$ orbitals

more energy difference between $5f$ and $6d$ than between $4f$ and $5d$ orbitals

more reactive nature of the actinoids than the lanthanoids