1. Atomic Structure Chm 1.1.1

2. Matter

3. MixturesPure Substances

4. Compounds Elements that are CHEMICALLY bonded together Can’t be separated by physical means

5. Elements Made up of 1 type of atom

6. Atoms Smallest unit of matter That has the characteristics of the element  What elements are made of

7. Regions of the Atom Nucleus Electron Cloud -Area surrounding the nucleus

8. Nucleus Subatomic Particles: Proton – mass = 1amu positive charge Neutron – mass = 1amu no charge

9. Electron Cloud Subatomic Particle: Electron – mass = 0 amu negative charge orbits the nucleus

10. Ions + An atom with an electrical charge cation

11. Ions - anion

12. Isotopes Different number of neutrons = different mass

13. Isotope Designation Carbon - 12

14. Atomic Number, Mass # and Atomic Mass Atomic Number Atomic Mass Mass Number = 59