Everything Science Grade 10

6.5 CHAPTER 6. CHEMICAL BONDING

Do some research on types of crystal lat-

tices (although the section on ionic bond-

ing only showed the crystal lattice for

sodium chloride, many other types of lat-

tices exist) and try to build some of these.

Share your findings with your class and

compare notes to see what types of crys-

tal lattices they found. How would you

show metallic bonding?

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Exercise 6 - 4

1. Give two examples of everyday objects that contain:

a. covalent bonds

b. ionic bonds

c. metallic bonds

2. Complete the table which compares the different types of bonding:

Covalent Ionic Metallic

Types of atoms involved

Nature of bond between atoms

Melting point (high/low)

Conducts electricity? (yes/no)

Other properties

3. Complete the table below by identifying the type of bond (covalent, ionic

or metallic) in each of the compounds:

Molecular formula Type of bond

H 2 SO 4

FeS

NaI

MgCl 2

Zn

118 Chemistry: Matter and Materials