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Dalton's Postulates

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Check for Understanding (CFU) #1: Evaluate & Eliminate Inaccurate Historical Models

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Check for Understanding (CFU) #1: Evaluate & Eliminate Inaccurate Historical Models

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1) What model(s) of the atom is most accurate with Dalton's theory on our Google Doc? 2) What evidence from the balloon string experiment and simulation can help us eliminate this model?  (RECORD YOUR NAME OR INITIALS ON YOUR POST!)

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1827: Thomson's Experiment and Atomic Model

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1827: Thomson's Experiment and Atomic Model

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 J.J. Thompson's Experiment for Padlet- JM

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How Stuff works! CRT Cathode Ray Tubes (Televisions) FOCUSED ELECTRON BEAM!

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CLICK PREVIEW--> TURN ON--> ADJUST PARTICLE SLIDER --> VIEW BEAM AND PARTICLES

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Check out this educational resource from the Concord Consortium.

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Cathode Rays Lead to Thomson's Model of the Atom

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CFU #2: Evaluate & Eliminate Inaccurate Historical Models

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CFU #2: Evaluate & Eliminate Inaccurate Historical Models

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1) How did Thomson's experiment lead to the discovery of electrons?  2) Based on the experiment, why do you think Thomson developed the "plum pudding" model of the atom? 3) What evidence from the balloon string experiment and simulation can help us eliminate this model?  (RECORD GROUP NUMBER IN POST!)

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Record a takeaway, key idea or question related to this reading as a comment. (Add your name or initials)

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(VIDEO) Discovering the Nucleus of the Atom & its power to heal & destroy.

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(VIDEO) Discovering the Nucleus of the Atom & its power to heal & destroy.

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The discovery of the atomic nucleus has lead to many advanced technologies, some that heal (radiation & other cancer treatments) and destroy (nuclear bombs). Watch the video to see a glimpse of the power within the nucleus. What do you notice? wonder?

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Newly declassified films show US nuclear tests

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(VIDEO 2) Discovering the Nucleus of the Atom & its power to heal & destroy.

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(VIDEO 2) Discovering the Nucleus of the Atom & its power to heal & destroy.

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The discovery of the atomic nucleus has lead to many advanced technologies, some that heal (radiation & other cancer treatments) and destroy (nuclear bombs). Watch the video to see how the nuclear chemistry is used in modern medicine. What do you notice? What do you wonder?

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VideoLink lets you share videos on YouTube easily, without distracting third-party content or advertisements.

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Check for Understanding (CFU) #3: Evaluate & Eliminate Inaccurate Historical Models

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Check for Understanding (CFU) #3: Evaluate & Eliminate Inaccurate Historical Models

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1)  How does the gold foil experiment provide evidence for a positively charged nucleus? 2) Which model of the atom BEST supports Rutherford's findings? 3) How can Rutherford's model helps us understand why the balloon-string and simulation behaved the way it did?   (RECORD GROUP NUMBER IN POST!)

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SUMMARY OF THOMSON AND RUTHERFORD'S MODELS AND EXPERIMENTS

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SUMMARY OF THOMSON AND RUTHERFORD'S MODELS AND EXPERIMENTS

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This is a good summary page to also come back to. Record any new takeaways or understandings you gained and/or questions from reviewing this.

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Discovery of the electron and nucleus (article) | Khan Academy

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Thomson's cathode ray experiment and Rutherford's gold foil experiment

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OPTIONAL: PHET SIMULATION OF RUTHERFORD'S EXPERIMENT

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OPTIONAL: PHET SIMULATION OF RUTHERFORD'S EXPERIMENT

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What new takeaways or understandings did you gain from reviewing this simulation?

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 Rutherford's PhET Simulation Directions for Padlet (JM)

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1) How is Bohr's model different than Rutherford's model?
2) What causes metal ions (fireworks) to have different colors? 3) Which claim(s) from the image above is true? Explain why
4) Is the color produced when electrons absorb energy when they move up to higher energy levels in an atom or when they release energy as they return back to their original energy level?  (Record your Group Number in the Comment)

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QUANTUM MODEL: Wave Particle Duality- Part 1

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QUANTUM MODEL: Wave Particle Duality- Part 1

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QUANTUM MODEL: Wave Particle Duality- Part 2

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QUANTUM MODEL: Wave Particle Duality- Part 2

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(Click on double slit) Evidence that light (electrons) act like waves

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Evidence that light (electrons) act like particles

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Check for Understanding (CFU) #5: Wave Particle Duality

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Check for Understanding (CFU) #5: Wave Particle Duality

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1) Is the double slit experiment evidence that light and electrons act as particles or waves? Explain why.
2) Is the photoelectric effect evidence of light and electrons acting as particles or waves? Explain why.
2) How do electrons act like both a particle and a wave?  (Record your Group Number on the Comment)