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Democritus
Democritus was born in 460 BC and died 370 BC. He was a Greek philosopher and was the founder of the atomic theory. He is credited for creating atoms and said that all atoms are infinite in number. -
John DaltonJohn Dalton was born in 1766 and died in 1844. He stated that all matter came from atoms. Atoms cannot be created or destroyed.
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JJ ThomsonHe was born on December 18, 1856 and died in 1940. He used cathode ray to discover that atoms have negitive and positive charges. He also created the chocochip model.
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He was born on August 30, 1871 and died October 19, 1937.
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He was born on October 7, 1885 and died on November 8, 1962. He made the Bohr chart
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He was born October 20 1891 and died on July 24, 1974.
