1.6: More Percent Error Practice Problems

http://mypusd.prescottschools.com/teacherweb/phs/brianbunnell/documents/pecenterrorpracticeproblems.pdf

http://mypusd.prescottschools.com/teacherweb/phs/brianbunnell/documents/pecenterrorpracticeproblems.pdf

3.5: The Mole! VIDEO NOTES

1.3: Awesome Practice Problems for Finding Protons, Neutrons, and Electrons

Check out these awesome practice problems on finding the number of protons, neutrons, and electrons for atoms and ions in this tutorial!

http://chemistry.csudh.edu/lechelpcs/protonscsn7.html

3.2: Another Cathode Ray Tube

Here's another great one on the Cathode Ray Tube. This one shows how it responds in the presence of a magnet. Cool!

3.2: JJ Thomson and the Cathode Ray Tube

This guys voice is far from enthusiastic, but the information is really good. Just try not to be lulled to sleep by his voice.

3.2: Rutherford's Gold Foil Experiment Video