Journal Entry:

What are the different types of metallic solids that can form between atoms? What are some differences between the different structures?

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.

• You will learn how to use data from experiments to determine types of bond in unlabeled substances.

Closing Task:

You can identify properties of various types of bonds and predict results of experimenting with a variety of compounds to explore properties related to their bond types.

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 bonding describes an array of positively charged metal cores surrounded by a sea of mobile valence electrons. (EK 2.C.3)
    -Students are able to explain how a bonding model involving delocalized electrons is consistent with macroscopic properties of metals, and the shell model of the atom. (LO 2.20)

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)
    -Students are able to compare the properties of metal alloys with their constituent elements to determine if an alloy has formed, identify the type of allow formed, and explain the differences in properties using particulate level reasoning.