Question

The correct order of electron affinity is
O Be<B<C<N
O Be NBC
ON <Be<C<B
ON<C<B<Be​

Answer 1

Explanation:

Be NBC the correct order of electron affinity is there

Answer 2

Answer:

Be<N<C<B

Explanation:

Across the period , left to right electron affinity increases.

However, exceptionally, Be, N have less electron affinity ( they are highly stable).

Be has least electron affinity due to completely filled s orbital....1s^2 2s^2.

After Be, N has least electron affinity due half filled shell stability...2s^2 2p^3.

So , Be<N<C<B.