What are the four parts to Dalton's Theory

Answer: Dalton's atomic theory. Part 1: All matter is made of atoms.

Part 2: All atoms of a given element are identical in mass and properties.

Part 3: Compounds are combinations of two or more different types of atoms.

Part 4: A chemical reaction is a rearrangement of atoms.

Dalton's atomic theory presented four main principles:

1) All atoms in an element are uniform.

2) Atoms are indivisible.

3) Atoms combine in whole numbers.

4) Chemical reactions combine or divide elements without loss of matter.