Chapter 8, Problem 54A

(a)

Interpretation Introduction

Interpretation:

It is to be determined whether $N{F}_3$ follows the octet rule or not.

Concept interpretation:

The octet rule states that atoms are most stable when they have eight electrons in their valance shells.

Answer to Problem 54A

  $N{F}_3$ follows the octet rule.

Explanation of Solution

Lewis’s structure of ${\text{NF}}_{\text{3}}$ is as follows:

  

Each element has eight electrons, so it follows the octet rule.

(b)

Interpretation Introduction

Interpretation:

It is to be examined whether $PC{l}_2{F}_3$follows the octet rule or not.

Concept interpretation:

The octet rule states that atoms are most stable when they have eight electrons in their valance shells.

Answer to Problem 54A

No, it does not follow the octet rule.

Explanation of Solution

The Lewis structure is as follows:

  

  $PC{l}_2{F}_3$ will not follow the octet rule because P exceeds the number of valance electrons.

(c)

Interpretation Introduction

Interpretation:

It is to be examined whether $S{F}_4$follows the octet rule or not.

Concept Interpretation:

The octet rule states that atoms are most stable when they have eight electrons in their valance shells.

Answer to Problem 54A

No, it does not follow the octet rule.

Explanation of Solution

The Lewis structure is as follows:

  

  ${\text{SF}}_{\text{4}}$ does not follow the octet rule because it exceeds the number of valence electrons in their central atoms.

(d)

Interpretation Introduction

Interpretation:

It is to be examined whether $SC{l}_2$Follows the octet rule or not.

Concept Interpretation:

The octet rule states that atoms are most stable when they have eight electrons in their valance shells.

Answer to Problem 54A

Yes, it does obey the octet rule.

Explanation of Solution

The Lewis structure is as follows:

  

The sulfur atom has 8 electrons; thus, it obeys the octet rule.