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Dalton showed that common substances always broke down at the same proportions in the same elements.

His conclusion was that the compounds were combinations of atoms in various elements, and that could not be destroyed or created.

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these atoms were filled with positive matter and negatively charged electrons.

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His experiment was to throw particles onto a sheet of gold foil to see if they would go through the foil. He then discovered that most of the particles did in fact go through the foul, but not in the middle of it. He said that the middle part of atoms was called the nucleus.

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He believed that electrons orbited the nucleus at fixed energy’s and distances and that they can jump from one place to another but no space in between exists.

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Heisenberg said that it was impossible to determine positions and speed of electrons.

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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.