Chemistry

Problem

The electron affinities (

\text{EA}

) of fluorine and chlorine are given below.

Element	$\text{EA}$ (kJ mol $^{-1}$ )
F	−328
Cl	−349

Although fluorine is more electronegative than chlorine, its

\text{EA}

is less exothermic. a. Part 1: Describe the general trend one would predict for

\text{EA}

values moving down Group 17 and state how the data for F and Cl deviate from that trend. b. Part 2: Offer two distinct, well-supported reasons that account for the less exothermic

\text{EA}

of fluorine compared with chlorine.

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