Atomic Theory

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by gabeboi
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Discipline:
Science
Subject:
Chemistry

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Atomic Theory

ATOMIC STRUCTURE

Greek Era

Democritus

radioactive particles cause atoms to break down, then releasing radiation that takes the form of energy and subatomic particles.

created special and general theories of relativity, and hypothesizes about the particle nature of light which was the basis of nuclear energy.

all matter is able to be divided into any small quantity.

discovered that certain chemicals glowed when exposed to cathode rays. These rays weren't deflected by a magnetic field produced in the cathode ray tube. He named these X-rays.

1895

Wilhelm Rontgen

1898

1931

Marie Sklodowska Curie

James Chadwick

Albert Einstein

1905

discoverd the neutron component of the atomic nucleus and explained the nuclear fission of uranium 235. This also made it possible to produce elements heavier than uranium in the lab.


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