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atomic theory

noun
1.
Physics, Chemistry. any of several theories describing the structure, behavior, and other properties of the atom and its component parts.
2.
Philosophy, atomism (def 1).
Origin of atomic theory
1840-1850
1840-50
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for atomic theory
  • The dyestuffs industry and the chemical industry more generally were the products of the atomic theory and what followed from it.
  • It is as factual an explanation of the universe as the atomic theory of matter or the germ theory of disease.
  • Not unless you also ask whether basic atomic theory is wrong.
  • atomic theory offers another example of delayed confirmation.
  • Neither does atomic theory of matter, the heliocentric model of the solar system, or plate tectonics.
  • And, as was the case with atomic theory, one cannot predict how long such a leap will take.
  • Describe the sequence of selected discoveries, which resulted in modern atomic theory.
  • Students will also investigate direct and indirect evidence as they explore atomic theory and conservation of matter.
  • Charge radii were extracted from the measured isotope shifts with the help of precision atomic theory calculations.
British Dictionary definitions for atomic theory

atomic theory

noun
1.
any theory in which matter is regarded as consisting of atoms, esp that proposed by John Dalton postulating that elements are composed of atoms that can combine in definite proportions to form compounds
2.
the current concept of the atom as an entity with a definite structure See atomic structure
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Difficulty index for atomic theory

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Word Value for atomic

10
12
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