1. Atoms and the Periodic Table

2. The History of the periodic table…

3. History of the atom…

4. Structure of the atom…

5. Isotopes and Isotope Notation

10. Energy levels and spin of electrons

12. Periodic Trends: metals, nonmetals, metalloids
- Also called semiconductors

13. Periodic Trends: ionization, atomic radii, electronegativity

14. Periodic Trends: Ionization Energy
The energy needed to pull off an electron

15. Periodic Trends: Atomic Radius

16. Periodic Trends: Electronegativity
…Attractive force an atom has for shared electrons

17. Periodic Trends: Bonding
Valence electrons
vs Valence of an atom = bonding capacity

18. Lewis structures of atoms – valence electrons

19. the Ionic Bond

20. Lewis Structure of Compounds: the Ionic Bond

21. Lewis structures of Compounds: the Covalent Bond

22. Predicting bonds: Ionic and covalent
Metal + nonmetal
Nonmetal + nonmetal

23. Polar molecules vs Nonpolar molecules

24. London forces, dipole forces and Hydrogen bonds