When Did John Dalton Discover the Atomic Theory?

Answer

John Dalton was an English physicist and chemist most renowned for his work in the development of the atomic theory and colour blindness. He coined the atomic theory in the early 19th Century when he was secretary of the Manchester Literary and Philosophical Society.
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1808.
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John Dalton was the originator of atomic theory, which theory provided
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You mean element. To discover a single atom would be a remarkably difficult thing to achieve, especially in the 19th century. However, I will point out that Dalton did not discover
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John Dalton was an early English chemist who first developed an atomic theory. He postulated that elements were composed of units called atoms. He thought that atoms could not be
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