what is the method dalton used for the atomic theory
John Dalton and the Scientific Method. Dalton proposed his atomic theory in 1808; another century passed before the theory was universally accepted by scientists.
Many consider 2008 the 200th anniversary of atomic theory, John Daltonâs momentous theory of the nature of matter. Dalton (1766â1844) proposed that all matter in the universe is made of indestructible, unchangeable atomsâeach type characterized by a constant massâthat undergo chemical reactions by joining with and separating from each other.