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Atoms

Atomic Theory

TermDefinition
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.
Created by: kgwilson
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