Question

The correct order of negative electron gain enthalpy of the given elements is

• A. $F>Cl>Br$
• B. $Cl>Br>F$
• C. $Cl>F>Br$
• D. $F>Br>Cl$

Answer 1

The correct option is C $Cl>F>Br$

Answer (2)
$\begin{array}{cc}\text{Element}& {\Delta }_{\text{eg}}\text{H}{\text{(kJ mol}}^{–1})\\ \text{F}& \text{–328}\\ \text{Cl}& \text{–349}\\ \text{Br}& \text{–325}\end{array}$
${\Delta }_{eg}$