Sentence Examples


  • Until the time of John Dalton, the atomic conception remained purely qualitative, and until then it does not appear to have 1 Robert Boyle, The Sceptical Chymist (1661); The Usefulness of Natural Philosophy (1663).
  • Dalton (1803) gave the atomic theory a quantitative form, and showed that, by means of it, a vast number of the facts of chemistry could be predicted or explained.
  • Dalton lived in a period marked by great advances in experimental chemistry.
  • Dalton, who was a mathematical physicist even more than a chemist, had given much thought to the study of gases.
  • 00 O (DOG The diagrams show that Dalton formed a very definite conception of the nature of chemical combination; it was the union of a small number of atoms of one kind with a small number of another kind to form a compound atom, or as we now say a "molecule," this identical process being repeated millions of times to form a perceptible amount of a compound.

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