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5h 27min, jan 13, 1803 y - Dalton

Description:

Dalton's contribution was that his atomic theory stated that elements consisted of tiny particles called atoms. His theory also states that chemical reactions involve the re arrangement of combinations of atoms.

Added to timeline:

27 Oct 2017
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Atomic Theory Project: timeline portion

Date:

5h 27min, jan 13, 1803 y
Now
~ 216 years ago

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