Atomic Theories
Modeling Without Seeing

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Scientists are interested in the world (and universe) that we live in. It is a complicated place with many things to investigate. How do we undertake an investigation? Can we model all of the things we see around us? How did our current model of matter come to be. What is the role of experimentation in science? How do we model things that we can't see?

These are some of the questions addressed in this module of the course.

The lessons in this section are:

1. Matter and Elements - Fundamental building blocks of our universe.
2. Raisin Pudding Atoms - A history of atomic theory to the raisin pudding model.
3. Gold Foil Experiment - A classic experiment that changed how we thought about atoms.
4. Energy Levels - Making sense of light and matter.
5. Quantum Theory - The current model that makes no sense, but agrees with experiment!

Notes: There are multimedia links in this module. They may help! The practice homework could also be helpful, especially for the review homework. The homework associated with this module is AT1-AT5 and the atomicReview homework. If you start at the top of the menu and work your way down the computer will keep track of where you are and you can use the Back to Work! button. Enjoy!