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1. Dalton described how common substances always broke down into the same elements in the same proportions.

2. The sketch is attached at the top.

3. There were no details mentioned of his experiments in the video.

4. Dalton concluded that the various compounds were combinations of atoms of different elements. Each being a certain mass and size that couldn't be created or destroyed.

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1. Thomson described atoms as uniformly packed spheres of positive matter filled with negatively charged electrons. They also referred to this as the chocolate chip cookie atom.

2. The sketch is attached at the top.

3. There were no details mentioned of his experiments in the video.

4. No conclusion was said in the video, however, when researched it is found that he concluded that all atoms contain tiny negatively charged electrons.

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Rutherford - The Father of the Nuclear Age

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Rutherford - The Father of the Nuclear Age

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1. Rutherford described the atom, having a tiny, dense, and positively charged core called the nucleus. He also said that negatively charged electrons circulated around the nucleus.

2. The sketch is attached at the top.

3. When Rutherford was studying the effects of x-rays on gases, he decided to try and investigate atoms more closely by shooting tiny positively charged alpha particles at a sheet of gold foil. When he did this experiment, the atoms thinly dispersed, the positive charge wouldn't be enough to deflect the particles in one place. While most of the particles did pass through, some bounced back.

4. After this experiment, Rutherford concluded that atoms consisted of largely empty space with just a few electrons, while most of the mass was concentrated in the center, which he termed the nucleus.

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1. Bohr explained that electrons orbit the nucleus at fixed energies and densities, able to jump from 1 level to another, but not to exist in the space between.

2. The sketch is attached at the top.

3. Some experiments that Bohr did showed that rather than simply being describe particles, electrons also behaved like waves, not being confined to a particular point in space.

4. No conclusion was said in the video, however, when researched it is found that he concluded that the electron would have a larger amount of energy if it were located away from the nucleus.

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Heisenberg - Creator of the Uncertainty Principal

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Heisenberg - Creator of the Uncertainty Principal

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1. He described that the electrons were unpredictable, and you couldn't pinpoint the exact value, position, or speed of it. This is also how he introduces his uncertainty principal in the electron orbitals that surround the nucleus.

2.  The sketch is attached at the top.

3.  There were no details mentioned of his experiments in the video.

4. Heisenberg concluded that it was impossible to determine both the exact position and speed of the electrons as they moved around 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.