1. Quantum Mechanics and atomic structure
Atomic Physics
Quantum Mechanics and atomic structure

2. Probability, not destiny
Electron probability rather than orbit or trajectory.

3. Electron has wave properties
Diffraction and interference.
Wavelength =h/mv
Atomic structure is just wave solutions in a potential well.
Uncertainty principle

4. Congratulations! National Champions 2002, 2003, 2004
Not Uncertain
Congratulations! National Champions 2002, 2003, 2004

5. Blackbody radiation Problem: theory did not fit shape.
Einstein: photons

6. Blackbody radiation E=hf Problem: theory did not fit shape.
Einstein: photons
E=hf

7. Photoelectric effect

8. Photoelectric effect

9. Photoelectric effect

10. Photoelectric effect

11. Back to atoms Each electron orbital has different energy.
Energy can only change to fit spacing.

12. Back to atoms Each electron orbital has different energy.
Energy can only change to fit spacing.
Photon energies must match spacing.

13. Back to atoms Each electron orbital has different energy.
Energy can only change to fit spacing.
Photon energies must match spacing.

14. Back to atoms Each electron orbital has different energy.
Energy can only change to fit spacing.
Photon energies must match spacing.

15. Back to atoms Each electron orbital has different energy.
Energy can only change to fit spacing.
Photon energies must match spacing.

16. Fluorescence
UV up, visible down

17. Lasers
“Population inversion”