Question

The electron affinities of halogens are :
$F=332,Cl=349,Br=324,I=295kJ/mol$
The higher value for $Cl$ as compared to that of $F$ is due to

• A. higher atomic radius of $F$
• B. smaller electronegativity of $F$
• C. weaker electron-electron repulsion in $Cl$
• D. more vacant $p$ -subshell in $Cl$.

Answer 1

Answer: (C)

Due to larger atomic size of Cl, there is weaker electron-electron repulsion