Question

Correct order of 1st ionization potential among
elements Be, B, C, N, O is
(1) B < Be <C<O<N (2) B < Be <C<N<O
(3) Be<B<C<N<0 (4) Be <B<C<O<N​

Answer 1

Answer:

B<Be<C<O<N

Explanation:

here Be and N are fully filled and half filled configurations so their ionisation potential will be more than expected