Journal Entry:

What are the four different types of solids? What types of elements make up each? How do the properties differ?

Learning Intentions

• You will learn structure and properties of different types of solids.

Closing Task:

You can compare the structure of the five different kinds of bonds, and describe how they influence properties

Content Standards being covered:

Ionic Solids have high melting points, are brittle, and conduct electricity only when molten or in solution. (EK 2.D.1)

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 create 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)