1. Atomic Theory
SC.8.P.8.1: Explore the scientific theory of atoms (also known as atomic theory) by using models to explain in the motion of particles in solids, liquids, and gases. SC.8.P.8.6: Recognize that elements are grouped in the periodic table according to similarities of their properties. SC.8.P.8.7: Explore the scientific theory of atoms (also known as atomic theory) by recognizing that atoms are the smallest unit of an element and are composed of sub- atomic particles (electrons surrounding a nucleus containing protons and neutrons).

2. Atomic Theory Subatomic Particle Location Charge Mass Proton Neutron
Electron

4. States of Matter

5. States of Matter

6. Periodic Table Identify: Chemical Name Chemical Symbol Atomic Mass
Atomic Number
Number of Protons AND Neutrons
Number of Protons OR Electrons

7. Periodic Table Elements in the same group have similar properties.
This is because of their valence electrons.

8. Periodic Table
As you move across the periodic table, the atoms get larger and more massive.

9. Molecules: 2 atoms
Compounds: 2 DIFFERENT atoms

11. Atoms make up all of the living and nonliving matter we encounter!!