jan 1, 1803 - John Dalton

Description:

- Proposed Dalton's Atomic Theory.
- Matter is composed of small particles called atoms.
- Believed atoms are indivisible and indestructible.
- Atoms of a given element are identical in size, mass, and chemical properties.
- Different atoms combine in simple whole-number ratios to form compounds.
- In a chemical reaction, atoms are separated, combined or rearranged.
- Believed the air is not a vast chemical solvent.
- Wrote A New System of Chemical Philosophy.
- In his book, A New System of Chemical Philosophy, he presented his symbols and possible combinations of elements.

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