Chem Theories

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Last updated 6:40 PM on 6/13/26
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7 Terms

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Bohr

Electrons are restricted to certain circular orbits around the nucleus (planetary model)

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Chadwick

Identified the particle that has not charge (this particle resides in the nucleus)

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Dalton

Solid, indivisible sphere (cannot be created or destroyed)

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Democritus

Tiny, hard, and uncuttable object (atom from ‘atomos’ meaning uncuttable)

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Rutherford

Divisble units with central nucleus containing positive charge (empty space containing negative charges orbiting nucleus)

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Schrӧdinger

Electrons are moving around the nucleus in a cloud (modern model)

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Thomson

Sphere of positive charged studded with negatively charged particles (distribution of charges similar to raisins in plum pudding)