1. What do gold,
aluminum, and iron
have in common?

2. They are all made of atoms!
The particles that make up all matter…
So why do gold and aluminum and iron look and act
so different then?
Because each is made from a different atom!

3. How many different atoms are
there?
118!

4. Hydrogen
Oxygen
Chlorine
Flourine

5. So…what do we call it when
we put a bunch of THE SAME
KIND of atom together?
Element
• Contains only one type of atom.
• Cannot be broken down into a
simpler substance.
• Also known as a Pure Substance.

6. Carbon Atoms
Oxygen Atoms
Neon Atoms
CARBON
OXYGEN
NEON

7. So, what do we call it when we
put DIFFERENT atoms
together?
Compound
• Contains more than one kind
of atom, that are chemically
bonded (stuck) together.
• Can be broken down into
elements

8. Hydrogen Atoms
Oxygen Atoms
Sodium Atoms
Chlorine Atoms
Which 2 atoms
are bonded
together to
form the
compound?
WATER
(H2O)
Oxygen
Hydrogen
Sodium
Chlorine
SODIUM
CHLORIDE
(NaCl)