Chapter 8.5, Problem 73SSC

Interpretation Introduction

Interpretation:

General characteristics of covalent network solids need to be described.

Concept introduction:

Covalent bonds are chemical bonds where two or more atoms share one or more electron pairs. Polar covalent bonds are formed when there is small electronegtaivity difference between the bonded atoms. This results in the formation of partial positive and negative charges on the atoms.

Answer to Problem 73SSC

Covalent network solids are non conductor of heat and electricity, very hard and typically brittle.

Explanation of Solution

Characteristics of covalent network solid are they are extremely hard, non conductor of electricity and heat, very high melting point and are typically brittle. An example of covalent network solid is diamond, in structure of diamond each carbon atom is bonded to four other carbon atoms.

Conclusion

Covalent network solids are interconnected by a network of covalent bond. Examples are diamond and quartz.