Lewis structure and electron geometry of I 3 − has to be determined. Concept Introduction: Lewis model represents the molecules by the electron dot model which is based on the octet rule. While writing the Lewis structure of a covalent molecule these steps are followed: First correct skeleton is written for the molecule Total number of valence electrons are calculated Distribution of total number of valence electrons in such a way that it completes the octet configuration of all the constituent atoms. If any atom lacks the octet configuration the double or triple bonds are added. Valence shell electron pair repulsion (VSEPR) theory and Lewis model helps in determining the shape of the molecule. The molecular geometry of a molecule can be determined by consider the total number of electron groups, the number of bonding groups and the number of lone pairs.

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Chapter 10, Problem 112E

Interpretation Introduction

Interpretation:

Lewis structure and electron geometry of I3− has to be determined.

Concept Introduction:

Lewis model represents the molecules by the electron dot model which is based on the octet rule.

While writing the Lewis structure of a covalent molecule these steps are followed:

First correct skeleton is written for the molecule

Total number of valence electrons are calculated

Distribution of total number of valence electrons in such a way that it completes the octet configuration of all the constituent atoms.

If any atom lacks the octet configuration the double or triple bonds are added.

Valence shell electron pair repulsion (VSEPR) theory and Lewis model helps in determining the shape of the molecule.

The molecular geometry of a molecule can be determined by consider the total number of electron groups, the number of bonding groups and the number of lone pairs.

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