Journal Entry:

What type of elements make up molecular solids and covalent network solids?

Learning Intentions

• You will learn how a molecular solid differs from a covalent network solid

• You will be able to compare the structure of molecular solids and covalent network solids and describe how they influence properties

Closing Task:

You can write a comparison short essay comparing molecular solids and network solids.

Content Standards being covered:

Molecular solids with low molecular weight usually have low melting points and are not expected to conduct electricity as solids, in solution or when molten.  (EK 2.4.4)

        Students can crate a representation of a molecular solid that shows essential characterizes of the structure and interactions present in the substance.  (LO 2.31)

      Students are able to explain a representation that connects properties of a molecular solid to its structural attributes and to the interactions present at the atomic level. (LO 2.32)

Covalent network solids have properties that reflect their underlying 2-D or 3-D networks of covalent bonds. Covalent network solids generally have extremely high melting points and are hard.

       Students can create a representation of a covalent solid that show essential characteristics of the structure and interactions present in the substance. (LO 2.29)

        Students are able to explain a representation that connect properties of a covalent solid to it structural attributes and to the interactions present at the atomic level. (LO 2.30)