What are the main ideas of Dalton's atomic theory?
Matter was composed of small, indivisible particles called atoms.
Atoms of a given element are identical in size and mass and chemistry.
Atoms can neither be created nor destroyed.
Atoms combine in simple whole number ratios to form a variety of different chemical compounds.
Atoms are combined, separated, and rearranged in a chemical reaction.
None of these principles was revolutionary or even new. The idea of the