Geometric structure of a molecule should be defined. Geometric structures of four simple molecules should be drawn and the bond angles should be indicated. The main idea of valence shell electron pair repulsion theory should be explained. Using several examples, how VSEPR theory is applied to predict their geometric structure should be explained. Concept Introduction: In determine the shapes of molecules; the first step is to draw the Lewis structure. The Lewis structure indicates the bonding electron pairs and the nonbonding electron pairs. Then, to the Lewis structure, the valence-shell electron-pair repulsion (VSPER) theory is applied to determine the molecular geometry and the electron-group geometry. In order to identify the three-dimensional arrangement of atoms in a molecule, we need to know about the bond angle also. The valence-shell electron-pair repulsion theory states that bonding and non-bonding electron pairs repel each other so that electron pairs will move apart as far from each other as possible to minimize this repulsion.

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Chapter 12, Problem 41CR

Interpretation Introduction

Interpretation:

Geometric structure of a molecule should be defined. Geometric structures of four simple molecules should be drawn and the bond angles should be indicated. The main idea of valence shell electron pair repulsion theory should be explained. Using several examples, how VSEPR theory is applied to predict their geometric structure should be explained.

Concept Introduction:

In determine the shapes of molecules; the first step is to draw the Lewis structure. The Lewis structure indicates the bonding electron pairs and the nonbonding electron pairs. Then, to the Lewis structure, the valence-shell electron-pair repulsion (VSPER) theory is applied to determine the molecular geometry and the electron-group geometry. In order to identify the three-dimensional arrangement of atoms in a molecule, we need to know about the bond angle also. The valence-shell electron-pair repulsion theory states that bonding and non-bonding electron pairs repel each other so that electron pairs will move apart as far from each other as possible to minimize this repulsion.

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