1. Periodic Trends (2.9)

2. Charles-Augusten de Coulomb 1785

3. Coulombs forces The closer the electron; the stronger the force

4. Coulombs Force Equation

5. Effective Nuclear Charge

6. Electron Shielding from the from the pull of the positive nucleus

7. Atomic Radii Trends

8. Ion- Cation Positively charged Particles

9. Ion – Anion Negatively Charged Particle

10. Ionization Energy trend

11. Another View of Ionization Energy

12. Second & Third electron removal energies

13. Electron Affinity Trend

14. Ionic Radii Trend

15. Electronegativity trend

16. Another view of Electronegativity