The 6 essential points of daltons atomic theory are :-
1)All matters are made up of very tiny particles called atoms.
2)Atoms are indevisible particles which can not be created nor destroyed in a chemical reaction.
3)Atoms of a given element are identical in mass and chemical properties.
4)Atoms of different elements have different mass and chemical properties.
5)Atom combine in the ratioof small whole numbers to form compound.
6)The relative numbers and kinds of atoms are constant in a given compound.