First slide

Electronic configuration and Atomic , physical properties

Question

The elements with the highest electron gain enthalpy and electronegativity respectively are

Easy

A

Cl and Cl
B

F and F
C

F and Cl
D

Cl and F

Solution

The element with the highest electron gain enthalpy is Cl and with highest electronegativity F.
Due to very small size of Fluorine atom and inter electron repulsions, its Electron gain enthalppy is lesser than Chlorine.

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