1. DALTON'S THEORY (notes)
2. CHEMICAL ELEMENTS AND COMPOUNDS (notes)
3. THOMSON'S MODEL (notes)
4. RUTHERFORD'S AND BOHR'S MODEL (slide) (video 1) (video 2)
Nucleus and atomic shelles (download and open with a flash app)
5. NUMBERS TO IDENTIFY ATOMS (notes)
Particles of an atom (download and open with a flash app)
6. ATOMIC MASS (notes)
OBTAINING THE ATOMIC MASS OF CHEMICAL ELEMENTS (download and open with a flash app)