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12 Cards in this Set
- Front
- Back
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Mendeleev
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Put blank spots where he knew elements would be on periodic table
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Moseley
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Used atomic # instead of Atomic Mass to order elements on the periodic table
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Dalton
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Atomic Theory
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Atomic Theory
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1. All Matter is composed of very small particles called atoms
2. Atoms cannot be broken into smaller particles 3.Atoms cannot be created or destroyed |
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Millikan
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Found Charge of electron
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Thomson
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Discovered Electron, proton, and isotopes
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De Broglie
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Wave Length=Mass X Velocity
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Heisenberg
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Uncertainty Principal- Can't know where the electron is and its spin at the same time
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Schrodinger
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Came up with Quantum #'s
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Bohr
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Made model of rings in atom to locate electrons
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dobereiner
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Triad
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Newlands
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Put Elements in order of their atomic masses on the periodic table
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