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