1. Matter and Atoms PS3 PS4

2. Make 4 Square ProtonNeutron ElectronQuarks and Isotopes

3. Matter Has mass and volume (takes up space) Simplest whole piece of matter is the atom

5. Atom – 3 parts Electron Neutron Proton

7. Has positive charge Is in the nucleus Has mass Discovered by Rutherford

8. Neutron No charge Is in the nucleus Has mass Discovered by Chadwick

9. Electron Negative charge Has almost no mass Discovered by Thompson

10. Quarks These are sub – atomic particles They make up protons and neutrons Do not exist on their own

11. The Atom

13. Elements Pure Only one type of atom About a hundred (92) Periodic table

16. Element ID Symbol Atomic Number – the number of protons in the nucleus Mass number – its “weight”. Mass of neutrons and protons

17. Isotopes Elements that are not “normal” Have a different amount of neutrons than the “real” element Tend to be radioactive