11/30 - Notes: Atomic Theory - Fredric Harvey | Library

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_______  is considered to be the father of modern atomic thought.

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Democritus proposed that matter is made of small, indivisible objects called _______ .

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 _______  proposed the first atomic theory that was based on experimentation.

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 _______  found negative particles that were smaller than an atom, which he called _______ .

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 Thomson’s _______  atomic model stated that an atom is made of positively charged “dough” with negative electrons scattered throughout it.

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Rutherford’s model was improved when _______ proposed that electrons move in circular orbits, or _______  around the nucleus.

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_______  discovered the _______  a neutral particle in the nucleus of an atom.

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In modern atomic theory, electrons are found in an _______ , a hazy area around the nucleus in which an electron is likely to be located.