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John Daltom (jan 1, 1766 – jan 6, 1844)

Description:

John Dalton revived Democritus's ideas based on research he conducted. His theories were...
-All matter is composed of extremely small particles called atoms.
-All atoms of a given element are identical having the same size, mass, and chemical properties. Atoms of a specific element are different from those of another specific element.
-Atoms cannot be created, divided into smaller particles, or destroyed.
-Different atoms can combine to form compounds.
-In a chemical reaction atoms are separated, combined, or rearranged.
He propsed his atomic theory in 1803

Added to timeline:

22 Oct 2018
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Chemistry Timeline

Date:

jan 1, 1766
jan 6, 1844
~ 78 years
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