What laws did Dalton create?

John Dalton is best known for formulating the Atomic Theory in the early 19th century, which laid the groundwork for modern chemistry. His key postulates included the idea that all matter is composed of indivisible atoms, that atoms of a given element are identical in mass and properties, and that chemical reactions involve the rearrangement of atoms. Dalton also established the Law of Multiple Proportions, which states that when elements combine, they do so in ratiOS of small whole numbers. These contributions significantly advanced the understanding of chemical behavior and atomic structure.