Chapter 18, Problem 11E

(a)

Interpretation Introduction

To determine:The $\text{3d}$ orbital that is involved in the formation of a $\sigma$ bond between metal atoms.

(b)

Interpretation Introduction

To determine: A sketch of ${\sigma }_{3\text{d}}$ bonding and ${\sigma }_{{}_{3\text{d}}}^{\ast }$ antibonding MOs.

(c)

Interpretation Introduction

To determine: The reason for the generation of a node in the ${\sigma }_{{}_{3\text{d}}}^{\ast }$ molecular orbital.

(d)

Interpretation Introduction

To determine: The sketch of energy-level diagram for the ${\text{Sc}}_{\text{2}}$ molecule in which only the ${\sigma }_{\text{3d}}$ orbital is important.

(e)

Interpretation Introduction

To determine: The bond order of ${\text{Sc}}_{\text{2}}$ molecule.