Chapter 14, Problem 14.90P

(a)

Interpretation Introduction

Interpretation:

The stronger bond contain molecule has to be given from $\text{Cl-Cl or Br-Br}$.

Concept Introduction:

Atomic size:

Size of atom is measured by radius, the distance between the outer most electrons to centre of nucleus is known as ionic radius. From this, if radius high means atomic size is large and if radius small means atomic size also small.

Electronegativity:

Within the molecule, the tendency of an atom to attract the bonded electron toward itself is known as electronegativity.

(b)

Interpretation Introduction

Interpretation:

The stronger bond contain molecule has to be given from $\text{Br-Br}\text{or I}\text{-}\text{I}$.

Concept Introduction:

Atomic size:

Size of atom is measured by radius, the distance between the outer most electrons to centre of nucleus is known as ionic radius. From this, if radius high means atomic size is large and if radius small means atomic size also small.

Electronegativity:

Within the molecule, the tendency of an atom to attract the bonded electron toward itself is known as electronegativity.

(c)

Interpretation Introduction

Interpretation:

The stronger bond contain molecule has to be given from $\text{F-F}\text{or}\text{Cl-Cl}$.

Concept Introduction:

Atomic size:

Size of atom is measured by radius, the distance between the outer most electrons to centre of nucleus is known as ionic radius. From this, if radius high means atomic size is large and if radius small means atomic size also small.

Electronegativity:

Within the molecule, the tendency of an atom to attract the bonded electron toward itself is known as electronegativity.