First slide

Electronic configuration and Atomic , physical properties

Question

Bond dissociation enthalpy is highest for

Easy

A

Bromine
B

Chlorine
C

Fluorine
D

Iodine

Solution

Atomic radius trend….F<Cl<Br<I;
Density trend….F<Cl<Br<I;
IP trend….F>Cl>Br>I;
EN trend….F>Cl>Br>I;
Electron gain enthalpy trend….I<Br<F<Cl;
IP trend…..I^-<Br^-<F^-<Cl^-;
IP trend….F>Cl>Br>I>Cl^->F^->Br^->I^-
B.D.E….Cl₂>Br₂>F₂>I₂;
Iodine is most polarizable halogen.
Reactivity and oxidizing power…..F₂>Cl₂>Br₂>I₂;
Hydration enthalpy…F^->Cl^->Br^->I^-;
MP and BP trend….F₂<Cl₂<Br₂<I₂; Due to increased strength of London dispersion forces;

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