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All those guys behind the atomic theory.
|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. Thomson||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.|