character: John Dalton
topic: Dalton's Atomic Model
grade: 11
subject: Chemistry
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character: Democritus
topic: Early Concepts of the Atom
grade: 11
subject: Chemistry
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character: J.J. Thomson
topic: Plum Pudding Model
grade: 11
subject: Chemistry
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character: Ernest Rutherford
topic: Rutherford's Gold Foil Experiment
grade: 11
subject: Chemistry
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