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Historical Figures

Historical figures that contributed to the atomic theory
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Across
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Oil drop experiment.
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Developed planetary model of the atom.
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Developed the first atomic theory of matter.
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Gold foil experiment.
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Helped arrange atoms in the periodic table.
Down
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Plum puddling model.
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Electrons behave like waves
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Quantum mechanical model
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Discovered neutrons
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Matter is composed of empty space in which atoms move.