Chapter 10, Problem 10.7P

(a)

Interpretation Introduction

Interpretation:

Lewis structure for ${\text{PF}}_3$ is to be determined.

Concept introduction:

The steps to draw the Lewis structure of the molecule are as follows:

Step 1: Find the central atom and place the other atoms around it. The atom in a compound which has the lowest group number or lowest electronegativity considered as the central atom.

Step 2: Calculate the total number of valence electrons.

Step 3: Connect the other atoms around the central atoms to the central atom with a single bond and lower the value of valence electrons by 2 of every single bond.

Step 4: Allocate the remaining electrons in pairs so that the octet of each atom is satisfied.

Step 5: Convert the lone pair into a bond pair if required.

(b)

Interpretation Introduction

Interpretation:

Lewis structure for ${\text{H}}_2{\text{CO}}_3$ is to be determined.

Concept introduction:

The steps to draw the Lewis structure of the molecule are as follows:

Step 1: Find the central atom and place the other atoms around it. The atom in a compound which has the lowest group number or lowest electronegativity considered as the central atom.

Step 2: Calculate the total number of valence electrons.

Step 3: Connect the other atoms around the central atoms to the central atom with a single bond and lower the value of valence electrons by 2 of every single bond.

Step 4: Allocate the remaining electrons in pairs so that the octet of each atom is satisfied.

Step 5: Convert the lone pair into a bond pair if required.

(c)

Interpretation Introduction

Interpretation:

Lewis structure for ${\text{CS}}_{\text{2}}$ is to be determined.

Concept introduction:

The steps to draw the Lewis structure of the molecule are as follows:

Step 1: Find the central atom and place the other atoms around it. The atom in a compound which has the lowest group number or lowest electronegativity considered as the central atom.

Step 2: Calculate the total number of valence electrons.

Step 3: Connect the other atoms around the central atoms to the central atom with a single bond and lower the value of valence electrons by 2 of every single bond.

Step 4: Allocate the remaining electrons in pairs so that the octet of each atom is satisfied.

Step 5: Convert the lone pair into a bond pair if required.