1. To Do… OWL Lectures Discussion Chapter 11 due Friday, April 6
Continue reading Chapter 11
Discussion
Chapter 11 text homework
Chapter 12 text homework

2. Figure 11.1 The Rutherford atom The nuclear charge (n1) is balanced by the presence of n electrons moving in some way around the nucleus.
Figure 11-1 p239

3. Electromagnetic Radiation

4. Figure The difference between continuous and quantized energy levels can be illustrated by comparing a flight of stairs with a ramp.
Figure p246

5. A First Attempt: WRONG!

6. The Evolution of a Model
“Daltonian” Atoms
Electrons
Nuclear Atom
Quantized Energy Levels

7. Figure 11.3 The wavelength of a wave is the distance between peaks.
Figure 11-3 p240

8. Electromagnetic Radiation
Water vs liquid nitrogen

9. Electromagnetic Radiation Exhibits Wave Properties and Particulate Properties

10. Big Ideas – Waves Waves interfere with one another.
Constructive interference: adding
Destructive interference: canceling
The higher the energy, the more complex.
Waves are a measure of probability.
Not obvious.
Controversial when introduced.
Water vs liquid nitrogen

11. Different λ, Different Color

12. Energy Released

13. Energy as “Light”

15. Hydrogen Line Spectrum

16. A Change Between Two Discrete Energy Levels Emits a Photon of Light

17. Figure 11. 18 A representation of the photo of the firefly experiment
Figure A representation of the photo of the firefly experiment. Remember that a picture is brightest where the film has been exposed to the most light. Thus the intensity of the color reflects how often the firefly visited a given point in the room. Notice that the brightest area is in the center of the room near the source of the sex attractant.
Figure p247