\xa0The main postulates of Dalton’s atomic theory (Dalton 1808) are:1.\xa0Matter is made up of very small indivisible particles called atoms.2.\xa0Atoms of the same element are identical in all respects.3.\xa0Atoms of different elements differ in properties and mass.4.\xa0Atoms combine in a simple but fixed ratio to form compound atoms (now called molecules).5.\xa0Atom is the smallest particle which can take part in a chemical reaction.6.\xa0Atom can neither be created nor destroyed during a chemical reaction.7. Atoms of two elements may combine in different ratios to form more than one compound.