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Atoms are "uncuttable."
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Atomic model.
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Atoms are small, hard particles.
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Atoms constantly move.
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Atoms of different elements are different.
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Atoms of the same element are exactly alike.
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All substances are made of atoms.
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Elements combine in specific proportions.
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He conducted experiments in combining elements.
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His theory of the atomic structure lead to the "plum-pudding" model.
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He conducted the cathode-ray tube experiment.
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There are small, negatively charged particles inside an atom.
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Atoms contain mostly empty space.
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Electrons move in empty space in the atom
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Most of an atom's mass is in the nucleus.
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There is a small, dense, positively charged nucleus.
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He conducted the gold foil experiment.
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Electrons jump between levels from path to path.
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Electrons travel in definite paths.
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Electron paths cannot be predicted.
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Electrons are found in electron clouds, not paths.
