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jun 26, 1766 - John Dalton

Description:

Beliefs -
- Matter is composed of extremely small particles called atoms
- Atoms of a specific element are different from those of another element
- Different atoms combine in simple whole-number ratios to form compounds
- In A chemical reaction, atoms are separated, combined or rearranged

Models -
- Dalton’s atomic theory

Experiments-
- Conducted chemical reactions, that allowed him to determine the mass ratios of the elements involved in those reactions.

Added to timeline:

4 Oct 2017
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0
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Chem

Date:

jun 26, 1766
Now
~ 257 years ago
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