Hello Aspirant,

It seems that your question is incomplete because it is not clear that what you want to ask. So before answering this question i would give you a clear idea that Dalton's Atomic Theory is nothing else but a Modern Atomic Theory and father of Modern Atomic Theory is John Dalton. So now let me make you aware about the postulates of Dalton's Atomic Theory. According to this theory :-

• The matter is made up of very tiny particles known as atoms.
• The properties of all the atoms of a given element are the same including mass.
• Atoms of different elements combine in fixed ratios to form compounds.
• Atoms are neither created nor destroyed.
• Atoms of an element are identical in mass, size and many other chemical or physical properties, but atoms of two-different elements differ in mass, size, and many other chemical or physical properties.

I hope this information cleared your doubt, if not than please write the complete question so that we can assist you in a better way.

Good Luck!!