1. Today’s Agenda… Bellringer: What is an atom? Review
Notes on Elements and Compounds
Assignment: Frayer Model for Compound

2. Review What is an atom? What are atoms made up of?
Where are the protons, neutrons, and electrons located in the atom?
What kind of electrical charge do protons, neutrons, and electrons have?
What is the law of conservation of mass?
How is it related to atoms?

3. Elements & Compounds
Study Pack #9

4. Today’s Target…
I can describe compounds.

5. What is an element?
An element is matter made up of only one kind of atom
All matter is made up of elements
Examples: oxygen and nitrogen are in the air we breath & metals like aluminum are used to make many products we use everyday like soda cans

6. The Periodic Table
A chart that organizes and displays all the elements
Elements are represented on the table with symbols
One capital letter OR one capital and one lowercase letter
Example: O: Oxygen & Al: Aluminum
What other information can be seen on the periodic table?
Atomic number
Atomic mass
Metal, nonmetal, metalloid
Solid, liquid, gas

7. What are compounds? Made up of more than one kind of atom
Made up of more than one kind of element
Example: Water
H20
Made up of the elements hydrogen and oxygen

8. What are compounds?
When the atoms (elements) that make up a compound come together a chemical change occurs
This means the elements cannot be separated from each other very easily

9. What are compounds?
Compounds are represented by formulas which include letters and sometimes numbers
These formulas tell us….
What elements are in the compound
How many atoms of each element
Let’s try it!
What is NaCl made up of?
What is CO2 made up of?

10. Review
What is an element?
What is a compound?
How are they different?

11. Assignment Finish the Frayer Model for “Compound” Definition
Characteristics
Examples
Nonexamples