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its impossible to determine both the exact speed and position of the electron, as they move around an atom.

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Stimulated that electrons orbit the nucleus at fixed energies and fixed differences able to jump from one level to another, but not able to exist in the space in between.

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Wanted to test Thompson's theory of the atom by shooting alpha particles at gold foil. Some of the particles went through the foil but some bounced back. He concluded that atoms are mostly comprised of space, the electrons surround around the dense center of protons and neutrons he called the nucleus.

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Thompson depicted atoms as uniformly packed spheres of positive matter filled with electrons.

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Substances broke down to the same elements in the same proportions. He concluded that compounds were combinations of atoms of different elements, each of a particular size and mass, that can be created or destroyed.

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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.