1. 2.1 Nature of Matter

2. Matter
the “stuff” which the universe is composed of. 2 Characteristics:
Mass
Space
Eg’s?
gasoline, air, chair – composed of matter
Atoms - tiny particles matter is composed of. Can see using a powerful Scanning Tunneling Microscope (STM). Eg. Looking at sand close and far away.

3. Using a STM…What are these?

4. Atoms Is copper made of the same kind of atoms as gold?
This is like the alphabet – different combinations of letters make up different words.

5. Compounds
Compounds:
Substances made from bonding atoms together.
Contain 2 or more different types of atoms
Specific compounds consist of the same particles throughout.
Egs:
Molecule: made up of atoms that are stuck together
What’s the difference between a compound and a molcule?
A molecule is formed when two or more atoms join together chemically. A compound is a molecule that contains at least two different elements. All compounds are molecules but not all molecules are compounds.
What are Molecular hydrogen (H2), molecular oxygen (O2) and molecular nitrogen (N2)?

6. Elements
Eg. Pure gold – only contains gold atoms

7. What are the top ten elements in the universe? Write them down

8. Which of the top ten elements are found in the top 5 in air?
What is the top element found in the human body?

9. Read pg.28: Carbon an element of many forms
What are the 3 different forms of carbon?
How can there be 3 different forms of carbon?
What are the 3 different arrangements of carbon?

10. With a partner discuss: what are the 3 different states of matter and what are their properties? Give examples

11. do section 2.1 review questions. And q’s 1-7 pg.45
If you finish this, start reading section 2.2