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Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425

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BuyFindarrow_forward

Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425
Textbook Problem
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rite a Lewis structure for each of the following simple molecules. Show all bonding valence electron pairs as lines and all nonbonding valence electron pairs as dots. For those molecules that exhibit resonance, draw the various possible resonance forms.

msp;  a . SO 2 b .  N 2 ( N in center ) c .  O 3

Interpretation Introduction

(a)

Interpretation:

The Lewis structure for the given molecule is to be drawn. All bonding valence electron pairs are to be shown as lines and all nonbonding valence electron pairs are to be shown as dots. The various possible resonance forms of the given molecule are to be drawn.

Concept Introduction:

The representation an element along with its valence electrons is referred to as Lewis symbol or Electron Dot Symbol. The Lewis structure exhibits the connection between atoms. Each dot around an atom represents electrons.

The geometry of molecule is determined by electron pair present around the central atom.

The formula to calculate the number of electron pairs in compound is,

Electronpairs=bondpairs+lonepairs

Generally, the shape of the molecule will be linear if electron pairs are two and the shape of the molecule will be trigonal planar if electron pairs are 3.

Explanation

The given molecule is SO2.

Each S and O atoms possess six electrons in their valence shells. Thus, the Lewis structure for SO2 showing all bonding valence electron pairs as lines and all nonbonding valence electron pairs as dots is,

Figure 1

The above figure exhibits that SO2 molecule has four pair of bonding valence electrons and five pairs of nonbonding valence electrons, which are shown by lines and dots respectively.

The delocalization of lone pair or free electrons from one atom to another is known as resonance

Interpretation Introduction

(b)

Interpretation:

The Lewis structure for the given molecule is to be drawn. All bonding valence electron pairs are to be shown as lines and all nonbonding valence electron pairs are to be shown as dots. The various possible resonance forms of the given molecule are to be drawn.

Concept Introduction:

The representation an element along with its valence electrons is referred to as Lewis symbol or Electron Dot Symbol. The Lewis structure exhibits the connection between atoms. Each dot around an atom represents electrons.

The geometry of molecule is determined by electron pair present around the central atom.

The formula to calculate the number of electron pairs in compound is,

Electronpairs=bondpairs+lonepairs

Generally, the shape of the molecule will be linear if electron pairs are two and the shape of the molecule will be trigonal planar if electron pairs are 3.

Interpretation Introduction

(c)

Interpretation:

The Lewis structure for the given molecule is to be drawn. All bonding valence electron pairs are to be shown as lines and all nonbonding valence electron pairs are to be shown as dots. The various possible resonance forms of the given molecule are to be drawn.

Concept Introduction:

The representation an element along with its valence electrons is referred to as Lewis symbol or Electron Dot Symbol. The Lewis structure exhibits the connection between atoms. Each dot around an atom represents electrons.

The geometry of molecule is determined by electron pair present around the central atom.

The formula to calculate the number of electron pairs in compound is,

Electronpairs=bondpairs+lonepairs

Generally, the shape of the molecule will be linear if electron pairs are two and the shape of the molecule will be trigonal planar if electron pairs are 3.

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