Chapter 7, Problem 22E

(i)

Interpretation Introduction

To determine: The authenticity of the statement, “For a given period, the radii of the representative elements generally decrease from left to right across period.”

(ii)

Interpretation Introduction

To determine: The authenticity of the statement’ “The radii of the representative elements for the $n=3$ period are all larger than those of the corresponding elements in the $n=2$ period.”

(iii)

Interpretation Introduction

To determine: The authenticity of the statement, “For most of the representative elements, the change in radius from the $n=2$ to the $n=3$ period is greater than the change in radius from $n=3$ to $n=4$ .”

(iv)

Interpretation Introduction

To determine: The authenticity of the statement, “The radii of the transition elements generally increase moving from left to right within a period.

(v)

Interpretation Introduction

To determine: The authenticity of the statement, “The large radii of the Group $1\text{A}$ elements are due to their relatively small effective nuclear charges.”