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1. he showed atoms as uniformly packed spheres of positivity charged matter filled with negatively charged matter.
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3. he didn't talk about his experiment
4. he discovered the electron and won a nobel prize

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1. dalton states how common substances always broke down into the same elements in the same proportions. the various compounds were different elements with different mass and size.
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3. there wasn't any details of experiment but included that he lived modestly until the end
4. the conclusion is that many substances broke down into elements that could neither be created nor destroyed

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1. he studied atoms more closely by shooting small positively charged alpha particles at a sheet of gold foil. the atoms thinly dispersed positively charged would not be enough to deflect the particles
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3. the effect would be like a bunch of tennis balls punching through a thin paper screen. the foil was more like a thick net with very large mesh because the particles would bounce back
4. he concluded that the atoms consisted largely of empty space with just some electron's. while most of the mass was concentrated in the center which he named the nucleus

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1.stated that electrons orbiting the nucleus at fixed energies and distances. they were able to jump from one to another but did not exist in the space between them
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3.  the model took center stage but had complications it showed that rather than being discrete particles it behaved like waves instead of being confined in a sphere
4. the conclusion is that it behaved in waves instead of a confined space so his experiment had many complications

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1. it was impossible to determine the exact speed and position of electrons as they moved around an atom
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3. he didnt say details of experiment
4. electrons cannot be pinpointed but exist in a range of possible locations which gave rise to the current quantum model of an atom

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This is due next class meeting, if not completed this period!

Instructions on how to turn in are below.

Video: https://www.youtube.com/watch?v=xazQRcSCRaY&pp=ygUVdGVkIGVkIGF0b21pYyB0aGVvcnkg

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1. Click arrow under your profile pic.

2. Click ADD MEMBERS.

3. ADD my email. Give me CAN ADMINISTER access.

4. Go BACK and go to CHANGE PRIVACY.

5. Click PUBLIC.

6. Make it so visitors can view.

7. Go BACK and click COPY LINK TO CLIPBOARD.

8. Submit that link on Google Classroom.