Chapter 3, Problem 3.20P

Interpretation Introduction

(a)

Interpretation:

The number of $\sigma$ bonds, the number of $\text{π}$ bonds, and the number of electrons occupying nonbonding MOs are to be determined for the given molecule.

Concept introduction:

In order to determine the number of $\sigma$ bonds, the number of $\text{π}$ bonds, and the number of electrons occupying nonbonding MOs, the line drawings must first be converted into the corresponding Lewis structures.

In the Lewis structure, a single bond represents an electron pair in a $\sigma$ bonding MO. A double bond represents one pair in a $\sigma$ bonding MO and one pair in a $\text{π}$ bonding MO. Lone pairs are unshared and represent electrons occupying nonbonding MOs.

Interpretation Introduction

(b)

Interpretation:

The number of $\sigma$ bonds, the number of $\text{π}$ bonds and the number of electrons occupying nonbonding MOs are to be determined for the given molecule.

Concept introduction:

In order to determine the number of $\sigma$ bonds, the number of $\text{π}$ bonds and the number of electrons occupying nonbonding MOs, the line drawings must first be converted into the corresponding Lewis structures.

In the Lewis structure, a single bond represents an electron pair in a $\sigma$ bonding MO. A double bond represents one pair in a $\sigma$ bonding MO and one pair in a $\text{π}$ bonding MO. Lone pairs are unshared and represent electrons occupying nonbonding MOs.

Interpretation Introduction

(c)

Interpretation:

The number of $\sigma$ bonds, the number of $\text{π}$ bonds, and the number of electrons occupying nonbonding MOs are to be determined for the given ion.

Concept introduction:

In order to determine the number of $\sigma$ bonds, the number of $\text{π}$ bonds, and the number of electrons occupying nonbonding MOs, the line drawings must first be converted into the corresponding Lewis structures.

In the Lewis structure, a single bond represents an electron pair in a $\sigma$ bonding MO. A double bond represents one pair in a $\sigma$ bonding MO and one pair in a $\text{π}$ bonding MO. Lone pairs are unshared and represent electrons occupying nonbonding MOs.

Interpretation Introduction

(d)

Interpretation:

The number of $\sigma$ bonds, the number of $\text{π}$ bonds, and the number of electrons occupying nonbonding MOs are to be determined for the given molecule.

Concept introduction:

In order to determine the number of $\sigma$ bonds, the number of $\text{π}$ bonds, and the number of electrons occupying nonbonding MOs, the line drawings must first be converted into the corresponding Lewis structures.

In the Lewis structure, a single bond represents an electron pair in a $\sigma$ bonding MO. A double bond represents one pair in a $\sigma$ bonding MO and one pair in a $\text{π}$ bonding MO. Lone pairs are unshared and represent electrons occupying nonbonding MOs.