Dalton's atomic theory

British  

/ ˈdɔːltənz /

noun

1. chem the theory that matter consists of indivisible particles called atoms and that atoms of a given element are all identical and can neither be created nor destroyed. Compounds are formed by combination of atoms in simple ratios to give compound atoms (molecules). The theory was the basis of modern chemistry

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Etymology

Origin of Dalton's atomic theory

C19: named after John _Dalton

Example Sentences

Dalton's atomic theory is confined to the five-page final chapter of the first volume.

From Nature

Thus far speculation has run largely on the origin of life forms, but now we find revival of speculation about the nature of things generally, and the formulation of a theory which links Greek cosmology with early nineteenth-century science with Dalton’s Atomic Theory.

From Project Gutenberg

But for my part I can say that I know—in the same way that I know the truth of Mendeleef’s law, or Avogadro’s law, or Dalton’s atomic theory—that human beings do not become extinct when they die, that they are often able to communicate with us after that event, and that they are not in any orthodox heaven or hell.

From Project Gutenberg

John Dalton, in his investigations of the behaviour of gases, and in order to understand more easily what happened when gases John Dalton’s atomic theory. were absorbed by liquids, used the corpuscular hypothesis already mentioned in connexion with Boyle.

From Project Gutenberg

The laws of chemical combination were solved, in a measure, by John Dalton, and the solution expressed as Dalton’s “atomic theory.”

From Project Gutenberg