Question

Properties that are directly or indirectly related to the electronic configuration of the elements and show a regular gradation when we move from left to right in a period or form top to bottom in a group are called periodic properties. Some of these properties are ionization energy, electron affinity and electronegativity
Increasing order of second ionization energy is

• A. Ne > O > F > N > B > C > Be
• B. Be < C < B < N < F < O < Ne
• C. Be < B < C < N < O < F < Ne
• D. B < C < N < O < F < Be < Ne

Answer 1

Answer: (B)

We must compare the electronic configuration of monopositive ion to compare the second ionization potential. The correct order is
$Be<C<B<N<F<O<Ne$