First slide
Electronic configuration and Atomic , physical properties
Question

Statement 1: F atom has a less negative electron affinity than Cl atom. 

Statement 2: Additional electrons are repelled more effectively by 3p-electron in Cl atom than by 2p-electrons in F. 

Easy
Solution

It is due to higher interelectronic repulsion forces. The additional electrons are repelled more effectively 2p-electrons in F-atom (due to small size) than by 3p-electrons in Cl-atom. 

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