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Democritus
Greek philosopher, who developed the atomic theory of the universe. Anticipated the modern principles of the conservation of energy. -
John Dalton
British chemist, developed the atomic theory. His most important contribution to sciene was his theory that matter is composed of atoms -
Henri Becquerel
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Marie and Pierre Curie
They stated that radioactive materials cause atoms to break down spontaneously -
J.J Thomson
First to discover the electron. -
Ernest Rutherford
Became a nobel laureate for his work in nuclear physics. -
Niels Bohr
He made numerous contributions to our understandings of atomic structure -
Robert Millikan
Best known for his work in atomic physics and major science, dealing with the universe. -
Quantum model
It is a probability area an electron may be located in. It also includes a nucleas containing neutral particles known as a neutron and positive particles called protons -
James Chadwick
Measured the energy of the protons. That emerged from the hydrogen atoms. -
Aristotle
provided us with knowledge of natural science. He proposed his theory that all matter was made of earth air fire and water.
