1. Chapter 6 The Structure of Matter

2. D11
Describe how atoms combine to form new substances by transferring electrons (ionic bonding) or sharing electrons (covalent bonding).

3. Section 1 Compounds and Molecules

4. Learning Targets I can explain what holds a compound together.
I can differentiate between salt (a network structure) and sugar (a compound made from molecules).

5. What is a chemical bond?
A force that hold atoms or ions together in a compound.
discover.edventures.com
acsmars.com

6. How can the structure of chemical compounds be shown?
Propane
By using models:
Ball-and-stick
Structural formula
Space-filling models
chemistry.about.com
eastviewchemistry.pbworks.com
middleschoolchemistry.com

7. How would you describe a chemical bond?
Bend, stretch, and rotate without breaking
Can be represented by flexible springs
Hold atoms together tightly
labman.phys.utk.edu

8. What determines the properties of a compound?
Chemical structure
It is the way in which the atoms stick together AND the ways in which they are arranged.

9. What are network structures?
Have a regular, repeating pattern
Strong solids
Bonded in a strong, rigid structure
Covalent or ionic bonds
High melting and boiling points
indigo.com
pslc.ws
ibchem.com

10. Describe the attraction between molecules?
Strength of attraction varies between molecules
Can be solids (if attractions between molecules are strong) , or liquids, and gases (if attractions between molecules are weaker.)
encyclopedia2.thefreedictionary.com
seagas.com.au
chem.umass.edu

11. Learning Target Checkpoint
What holds a compound together?
What is the difference between salt (a network structure) and sugar (a compound made from molecules)?