Atomic Theory

1) All matter is made of atoms. Atoms are indivisible and indestructible.
2) All atoms of a given element are identical in mass and properties.
3) Compounds are formed by a combination of two or more different kinds of atoms.
4) A chemical reaction is a rearrangement of atoms.
- His theory was based on the premise that atoms of different elements could be distinguished by differences in their weights.
-It proposed elements differ due to the mass of their atoms.