1. Atomic Structure
Nucleus
Protons
Neutrons
Electrons

2. Atomic Structure ELECTRON
Tiny, very light particles
Have a negative electrical charge (-)
Located in the Electron Cloud
Orbit around the outside of the nucleus

3. Atomic Structure PROTON
Much larger and heavier than electrons
Protons have a positive charge (+)
Located in the nucleus of the atom

4. Atomic Structure NEUTRON
Large and heavy like protons
Neutrons have no electrical charge
Located in the nucleus of the atom

5. Mass of Sub Atomic Particles

6. Atomic Structure
What limitations does this atomic model have?

7. Atom Compared to a Baseball Stadium
If a marble representing the nucleus of an atom, is sitting on second base in a baseball stadium, the entire stadium would represent the size of the atom.

8. Atom – Penny Comparison
If you enlarged a penny to the size of the United States, each atom in the penny would only be the size of a ping pong ball.

9. So there are the same number of atoms in a penny as it would take ping pong balls to cover the US!!!