1. My Element!

2. My Example

3. Element: pure substance that cannot be broken down into any other substance by chemical or physical means.
Compound: made of two or more elements chemically bonded in a set ratio.
Mixture: two or more substances that are in the same place but not chemically bonded together.

4. Element
Consists of only one kind of atom.

5. Element
Cannot be broken down into simpler matter by physical or chemical means.

6. Molecule: two or more atoms combined Atom: smallest part of matter
Element
Can exist as either atoms or molecules. Ar N2
Molecule: two or more atoms combined
Atom: smallest part of matter

7. Element Periodic Table of Elements
A limited number of elements make up Earth, living matter, oceans and the atmosphere.
Periodic
Table
of Elements

8. Compound
Consists of atoms of two or more different elements bonded together.

9. Compound Can be broken down into elements by chemical means. Element B
Element A
Element B

10. Table Salt: Used to season food
Compound
Has properties different from its component elements Na
Sodium: will react violently with water
NaCl Cl
Chlorine: a gas which is deadly if inhaled
Table Salt: Used to season food

11. There are two hydrogen atoms for every one oxygen atom.
Compound
Always contains the same ratio of its component atoms.
H2O
There are two hydrogen atoms for every one oxygen atom.

12. Mixture
Two or more elements and/or compounds physically in the same space but not bonded together.

13. Mixture
Can be separated into its components by physical means

14. Mixture Often retains the properties of its components. Salad Lettuce
Carrot
Tomato