Fall.2008.MMA.Dayton.Timeline

John Dalton John Dalton (1766-1844) Was a English chemist that develop the modern atomic theory. The atomic theory has three parts," each element is composed of tiny indestructible particles called atoms, all atoms of a given element have the same mass and other properties that distinguish them from the atoms of other elements, atoms combine in simple, whole-number ratios to form compounds." (Introductory chemistry pg.92)