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Chapter 2
Test will probably occur the third class day of next week.
WebAssigns are up. Please ask questions for clarification.
Quiz on the ions is here. Do not wait until the last minute.
Remember that reading the textbook is important. If you are not at the point you want to be, then read, ask questions and read.
Some notes:
Key aspects of Dalton's Atomic Theory:
The Law of Definite Proportions:
The Law of Multiple Proportions:
JJ Thompson--increased knowledge of the atom by finding mass/charge ratio of electron with cathode ray tube. His model of the atom was the plum pudding model. This stated that an atom was a sphere of positive charge with embedded electrons.
Rutherford--Gold foil Experiment. Positive a - particles were shot at a piece of gold foil. Most passed straight through, but some were defleceted and a few were deflected back to the source. Conclusions: The atom is mostly empty space and there is a small dense area of positive charge (protons in the nucleus) at the center.
Naming Compounds
Name ionic compounds by cation name followed by anion name.
