Chapter 11, Problem 8RQ

(a)

Interpretation Introduction

Interpretation:

Elements $\text{Li}$ and $\text{Be}$ are given, the element having larger radius has to be identified.

Concept Introduction:

Atomic radii:

The distance between the center of the nucleus and the outermost electrons is known as the atomic radius of an atom.  In the periodic table, across a period atomic radius decreases and it increases down a group.

(b)

Interpretation Introduction

Interpretation:

Elements $\text{K}$ and $\text{Rb}$ are given, the element having larger radius has to be identified.

Concept Introduction:

Refer part a.

(c)

Interpretation Introduction

Interpretation:

Elements $\text{Al}$ and $\text{P}$ are given, the element having larger radius has to be identified.

Concept Introduction:

Refer part a.

(d)

Interpretation Introduction

Interpretation:

Elements $\text{F}$ and $\text{Cl}$ are given, the element having larger radius has to be identified.

Concept Introduction:

Refer part a.

(e)

Interpretation Introduction

Interpretation:

Elements $\text{O}$ and $\text{Se}$ are given, the element having larger radius has to be identified.

Concept Introduction:

Refer part a.

(f)

Interpretation Introduction

Interpretation:

Elements $\text{As}$ and $\text{Kr}$ are given, the element having larger radius has to be identified.

Concept Introduction:

Refer part a.