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The top documents tagged [thomson1897an atom]
Atomic Models. JOHN DALTON Early 1800’s Thought atoms were smooth, hard balls that could not be broken into smaller pieces. All elements are made of atoms
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The Greeks - Democritus 450 B.C. Believes there is a fundamental particle that cannot be broken. The particle is invisible. Coins the term “atom”
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DEMOCRITUS DALTON THOMSON RUTHERFORD BOHR DeBROGLIE
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