1. Modern Quantum Model of Atoms 2.7

2. Louis de Broglie 1924

3. Diffraction (bending of light)

4. Interference (waves overlapping)

5. Werner Heisenberg 1927

6. Uncertainty principle

7. Erwin Schrödinger 1926

8. Electron Orbitals

9. Principle Quantum Number (n)

10. Angular Momentum Quantum number (l)

11. Magnetic Quantum number

12. Spin Quantum number

13. All together now… Quantum number for an electron example

14. Orbital Electron Notation

15. Aufbau Principle (“Build up” starting from the nucleus)

16. Wolfgang Pauli

17. Pauli Exclusion Principle

18. Friedrich Hund

19. Hund’s Rule

20. Noble Gas Electron Configuration