Which of the following arrangement order is not correct according to the property indicated against it?
Effective nuclear charge: \( \mathrm{Be} < \mathrm{B} < \mathrm{C} < \mathrm{N} \)
Order of ionic radius: \( \mathrm{P}^{3-} > \mathrm{S}^{2-} > \mathrm{Cl}^{-} > \mathrm{Ca}^{2+} \)
Order of electron gain enthalpy: \( \mathrm{He} < \mathrm{Kr} = \mathrm{Ar} < \mathrm{Ne} \)
\( 2^{\text{nd}} \) ionization energy: \( \mathrm{C} < \mathrm{N} < \mathrm{O} < \mathrm{F} \)
