Test Preparation on Periodic Table & Periodicity-II-Chemistry Test Series For NEET-2020
The correct order of atomic radii in group 13 elements is
In group 13 due to transition contraction [Al > Ga] .
The first ionisation potentials (eV) of Be and B respectively are
First I.P. of Be > B because of stable ns2 configuration.
Which of the order for ionisation energy is correct
Ionisation energy increases across the period but due to stable half filled configuration of VA group, its I.E. is more than VI-A group.
Amongst the given choices option (c) has a lowest ionisation enthalpy because its electronic configuration represent the bigger size and we know that ionisation enthalpy decrease with increase of no. of orbit.