STANDARDChemistry-Periodic Table and Periodicity
STANDARD Chemistry Electron Affinity MCQ Question
Type: MCQ-conceptual-Medium
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
Correct Answer
Option B
Detailed Explanation
Halogens have very high electron affinity. The electron affinity of fluorine is unexpectedly low due to the small size of the F atom. The correct order considering the negative sign is Cl < F < S < O.
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