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Atoms
Atomic Theory
Term | Definition |
---|---|
Atom | The "smallest piece of matter" that if broken into smaller pieces, loses its original properties. |
Element | A substance that cannot be broken into smaller pieces. |
John Dalton | The first scientist to formulate a theory on how atoms were put together. |
J.J. Thompson | He is credited with the discovery and identification of the electron; and with the discovery of the first subatomic particle. |
Ernest Rutherford | The first scientist to discover that atoms have a nucleus. |
Niels Bohr | He developed the most recent model of the atom which is the basis of modern atomic theory. |