Dalton based his theory on the law of conservation of mass and the law of constant composition. The first part of his theory states that all matter is made of atoms, which are indivisible. The second part of the theory says all atoms of an element are identical in mass and properties.
Dalton’s atomic theory was the very first complete attempt to describe all matter in terms of atoms and their properties. He based his theory on the law of conservation of mass and the law of constant composition.
The first part of the theory states that all matter is made of atoms, which are indivisible. His law, which is related to multiple proportions, is part of the basis for modern atomic theory. He has given the following ideas for conservation of mass:
a. All atoms of an element are identical.
b. The atoms of distinct elements vary in mass.
c. Atoms are indestructible.
