Question
Chemistry Question on Classification of elements & periodicity in properties
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 < CI
C
S < O < Cl < F
D
F < CI < O < S
Answer
O < S < F < CI
Explanation
Solution
The correct order of electron gain enthalpy
(electron affinity) is
O<S<F<Cl
(electron affinity in eV ) 1.482.073.453.61