John+Dalton+-+RB

English chemist, meteorologist and physicist, best known for his work in the development of modern atomic theory.
 * John Dalton** (6 September 1766 – 27 July 1844)

** Five main points of Dalton's atomic theory **

 * The atoms of a given element are different from those of any other element; the atoms of different elements can be distinguished from one another by their respective relative atomic weights.
 * All atoms of a given element are identical.
 * Atoms of one element can combine with atoms of other elements to form chemical compounds; a given compound always has the same relative numbers of types of atoms.
 * Atoms cannot be created, divided into smaller particles, nor destroyed in the chemical process; a chemical reaction simply changes the way atoms are grouped together.
 * Elements are made of tiny particles called atoms.