Chapter 4, Problem 13P

a.

Interpretation Introduction

Interpretation:

The Lewis formula for Sodium iodide should be written.

Concept introduction:

• Valence electron: The electrons which are present in the outer most energy level is known as the valence electron. This can be calculated by the group number of the element. Generally, the group number is same as the valence electrons of any elements.
• Lewis electron dot symbol is a structure of a molecule that shows the bonding between atoms as well as lone pairs of electrons of atoms also.
• Some common rule for writing Lewis formulas are as follows:

1. Hydrogen atom always form a single bond; thus, it is always at the end of a sequence of the atom
2. Oxygen forms two bonds.
3. Nitrogen forms triple bonds.
4. Carbon forms four bonds.
5. For polyatomic molecules and ions, a central atom surrounded by other atoms

b.

Interpretation Introduction

Interpretation:

The Lewis formula for potassium sulfide should be written.

Concept introduction:

• Valence electron: The electrons which are present in the outer most energy level are known as valence electron. This can be calculated by the group number of the element. Generally, the group number is same as the valence electrons of any elements.
• Lewis electron dot symbol is a structure of a molecule that shows the bonding between atoms as well as lone pairs of electrons of atoms also.
• Some common rule for writing Lewis formulas are as follows:

1. Hydrogen atom always form a single bond, thus it is always at the end of a sequence of the atom
2. Oxygen forms two bonds.
3. Nitrogen forms triple bonds.
4. Carbon forms four bonds.
5. For polyatomic molecules and ions, a central atom surrounded by other atoms

c.

Interpretation Introduction

Interpretation:

The Lewis formula for calcium chloride should be written.

Concept introduction:

• Valence electron: The electrons which are present in the outer most energy level are known as valence electron. This can be calculated by the group number of the element. Generally, the group number is same as the valence electrons of any elements.
• Lewis electron dot symbol is a structure of a molecule that shows the bonding between atoms as well as lone pairs of electrons of atoms also.
• Some common rule for writing Lewis formulas are as follows:

1. Hydrogen atom always form a single bond, thus it is always at the end of a sequence of the atom
2. Oxygen forms two bonds.
3. Nitrogen forms triple bonds.
4. Carbon forms four bonds.
5. For polyatomic molecules and ions, a central atom surrounded by other atoms

d.

Interpretation Introduction

Interpretation:

The Lewis formula for aluminum fluoride should be explained.

Concept introduction:

• Valence electron: The electrons which are present in the outer most energy level are known as valence electron. This can be calculated by the group number of the element. Generally, the group number is same as the valence electrons of any elements.
• Lewis electron dot symbol is a structure of a molecule that shows the bonding between atoms as well as lone pairs of electrons of atoms also.
• Some common rule for writing Lewis formulas are as follows:

1. Hydrogen atom always form a single bond, thus it is always at the end of a sequence of the atom
2. Oxygen forms two bonds.
3. Nitrogen forms triple bonds.
4. Carbon forms four bonds.
5. For polyatomic molecules and ions, a central atom surrounded by other atoms