Q. Which one of the following arrangements represents the correct order of electron gain enthalpy (with negative sign) of the given atomic species?
A) $Cl < F < S < O$
B) $O < S < F < Cl$
C) $S < O < Cl < F$
D) $F < Cl < O < S$
Explanation
(b)
The correct order of electron gain enthalpy (electron affinity) is $O < S < F < Cl$
Element O S F Cl
Electron affinity 1.48 2.07 3.45 3.61
In eV
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.