The structure and the geometry around the indicated atoms of the given molecular model of methionine has to be determined. Concept introduction: Molecular geometry can be predicted from the structure by using the valence-shell Electron-pair repulsion (VSEPR) model. -Count the number of valence electron pairs (bond pairs and lone pairs). -Assume that the valence electron pairs form a structure that allows them to be as far away from each other as possible. -If there are only two bond pair electrons, the molecule is linear. -If there are three bond pair electrons, the molecule is shaped like a trigonal planar. -If there are four bond pair electrons, the molecule is shaped as a regular tetrahedral. - Repulsion between lone pair-bond pair of electrons effect the geometry of molecules.

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Chapter 4.8, Problem 4.17KCP

Interpretation Introduction

Interpretation:

The structure and the geometry around the indicated atoms of the given molecular model of methionine has to be determined.

Concept introduction:

Molecular geometry can be predicted from the structure by using the valence-shell Electron-pair repulsion (VSEPR) model.

-Count the number of valence electron pairs (bond pairs and lone pairs).

-Assume that the valence electron pairs form a structure that allows them to be as far away from each other as possible.

-If there are only two bond pair electrons, the molecule is linear.

-If there are three bond pair electrons, the molecule is shaped like a trigonal planar.

-If there are four bond pair electrons, the molecule is shaped as a regular tetrahedral.

- Repulsion between lone pair-bond pair of electrons effect the geometry of molecules.

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