Chapter 12, Problem 35A

(a)

Interpretation Introduction

Interpretation:

The Lewis structure of given molecule is to be drawn.

Concept introduction:

Lewis structure is a representation of a molecule which shows shared and unshared pair of electrons. It is helpful to determine the shape of a molecule.

Answer to Problem 35A

  

Explanation of Solution

Nitrogen has five valence electrons. Each electron is shared by each bromine atom and two electrons are left unshared. There will be 3 lone pair each on the Br atom because Br atoms have total of 7 valence electrons and only 1 electron is involved in bonding.

(b)

Interpretation Introduction

Interpretation:

The Lewis structure of given molecule is to be drawn.

Concept introduction:

Lewis structure is a representation of a molecule which shows shared and unshared pair of electrons. It is helpful to determine the shape of a molecule.

Answer to Problem 35A

  

Explanation of Solution

Fluorine has seven valence electrons and hydrogen has one valence electron. So, both share one electron with each other to complete doublet of hydrogen and octet of fluorine. Also, there will be 3 lone pair of electrons on F atom.

(c)

Interpretation Introduction

Interpretation:

The Lewis structure of given molecule is to be drawn.

Concept introduction:

Lewis structure is a representation of a molecule which shows shared and unshared pair of electrons. It is helpful to determine the shape of a molecule.

Answer to Problem 35A

  

Explanation of Solution

Carbon has four valence electrons. Each electron is shared by one bromine atom and no electrons are left unshared. There will be 3 lone pair each on the Br atom because Br atoms have total of 7 valence electrons and only 1 electron is involved in bonding.

(d)

Interpretation Introduction

Interpretation:

The Lewis structure of given molecule is to be drawn.

Concept introduction:

Lewis structure is a representation of a molecule which shows shared and unshared pair of electrons. It is helpful to determine the shape of a molecule.

Answer to Problem 35A

  

Explanation of Solution

Carbon has four valence electrons. One electron of carbon is shared with hydrogen to complete its doublet and carbon shares three electrons with other carbon to complete octet and no electrons are left unshared.