The total number of electrons in the given molecular skeleton is to be calculated and there by the Lewis structure is to be determined. Concept Introduction: The electrons present in the valance shell are called as valance electrons. A single bond is formed by involving two valance electrons. The valance electrons which are not involved in bonding are called as unshared of electrons and they are usually represented as dots over the atom.

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Chapter 1, Problem 16EQ

Interpretation Introduction

Interpretation:

The total number of electrons in the given molecular skeleton is to be calculated and there by the Lewis structure is to be determined.

Concept Introduction:

The electrons present in the valance shell are called as valance electrons. A single bond is formed by involving two valance electrons. The valance electrons which are not involved in bonding are called as unshared of electrons and they are usually represented as dots over the atom.

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- Draw Lewis structures for each of the following. Give the total number of valence electrons, select from the lists the number of Regions of Electron Density (REDs) around the central atom, the molecular shape, and the bond angles. - Do not put covalent bonds between metals and nonmetals. - Put brackets around anions to show both charge and quantity. Shapes tetrahedral pyramidal bent trigonal planar linear diatomic monatomic ions Bond Types nonpolar covalent polar covalent nonpolar & polar covalent ionic ionic & covalent Type of molecule Nonpolar Polar lonic 1. HCC13 valence e-1 = shape= type of bonds = type of molecule = 2. SCI2 valence e-1 = shape= type of bonds = type of molecule = 3. P204 valence e-1 = shape= type of bonds = type of molecule = 4. N2O4 valence e-1 = shape= type of bonds = type of molecule = hydrogen carbon trichloride sulfur dichloride diphosphorus tetroxide dinitrogen tetroxide