'Jj thompson' diaporamas de présentation

Chemistry:

Chemistry:. Atomic Structure. by Tim F. Rowbotham - modified in 2008 , 2011 . Pre-Assessment Questions. Ready your remote. Which of the following is the most accurate model of the structure of an atom?. Tiny solid sphere Tiny solar system Spherical Cloud Chocolate chip cookie.

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Metals. Metalloids. Nonmetals.

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A Quick History of Chemistry

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Topic 7. 1 Atomic Structure

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Lavoisier

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THE ATOM

THE ATOM. Around 400 B.C. a Greek philosopher, Democritus , proposed that all forms of matter were divisible into extremely small fundamental particles called atomos . (Greek for indivisible)

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Particles and waves

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Discovery of the Electron, Models & Theories

Discovery of the Electron, Models & Theories. Jeffrey Thorin Daniel. JJ Thompson. Robert Millikan. Found the accurate way to decide the charge carried with an atom. Discovered the electron Wrote books on atomic theory and structure First to suggest that atoms have parts.

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Unit 4: Atomic and Nuclear Structure Electromagnetic Spectrum

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Greek Atomism

Greek Atomism. The Greeks were the first people to develop an atomic theory. They could not perform formal scientific experiment but they reason that if they keep deviding an object like paper into two over and over it will eventually come to a point where matter was indivisable .

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Some Experiments!

Some Experiments!. JJ Thompson . Cathode Ray Tube Provided evidence of electron . seven of his research assistants and his son won Nobel Prizes in physics. Ernest Rutherford . Discovered protons jammed together in center of mass Gold Foil Experiment . Atomic Mass. Protons plus neutrons

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Some Experiments!

Some Experiments!. JJ Thompson . Cathode Ray Tube Provided evidence of electron . seven of his research assistants and his son won Nobel Prizes in physics. Ernest Rutherford . Discovered protons jammed together in center of mass Gold Foil Experiment . Atomic Mass. Protons plus neutrons

146 views • 5 slides