Journal Entry:

What are the four different types of bonds that can form between two atoms? What are some differences in properties between the different types of bonds?

Learning Intentions

• You will learn what properties various bond types have.

• You will learn how to design experiments to test various bond types of unlabeled substances.

Closing Task:

You can identify and describe procedures that would test properties of substances to determine which type of bond is found in that substance.

Content Standards being covered:

Students can predict the type of bonding present between two atoms in a binary compound based on position in the periodic table and the electronegativity of the elements. (LO 2.17)

Metallic solids are good conductors of heat and electricity, have a wide range of melting points, and are shiny, malleable ductile and readily alloyed. (EK 2.D.2)

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)