Classification of Solids

Crystalline Solids

Crystalline Solids consist of particles (atoms or molecules) arranged in an orderly, geometric repeating pattern.

Amorphous solids are any noncrystalline solid in which the atoms and molecules are not organized in a definite lattice pattern.

There are four types of condensed crystalline solids:

Ionic Solids

Covalent Molecular Solids

Covalent Network Solids

Metallic Solids


They can be differentiated by their make-up, bonding type, and their physical properties – particularly their conductivity and melting points.

Your job is to compile information on each of these solids. You may do that however you choose - use the internet, read the textbook, watch the videos below. Your goal is to be able to answer the following questions:

(1) What types of elements make up each solid?

(2) What types of attractive forces hold the crystal together in each solid?

(3) What are the physical properties of each type of solid?

(4) How do the attractive forces influence the physical properties of each solid?

(5) Are there any properties that are unique to each type of solid?

You can take your own notes or use the notes organizer that is attached to your Google Classroom assignment. Have fun!

Ionic Solids

Please note that we will NOT be covering Coulomb's Law in class.

Metallic Solids

While you should know the definition of an allow, we will not be covering the different types of alloys as discussed here.

Covalent Molecular Solids

Covalent Network Solids

We will not be covering doping of covalent network solids.

You should now have the notes you need for these different types of crystalline solids. Nice job!