26 jun 1766 año - John Dalton

Descripción:

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.

Añadido al timeline:

fecha: