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atomic weight

Syllabification: a·tom·ic weight

Definition of atomic weight in English:

noun

Chemistry
Another term for atomic mass.
Example sentences
  • In general the molecular weight of a molecule is the sum of the atomic weights of its constituent atoms.
  • Finding that the isotopes of neon have atomic weights that are whole numbers vindicated Prout's hypothesis that hydrogen was the basis for all the elements.
  • The sum of the atomic mass of the protons and neutrons determines the atomic mass or atomic weight of the nucleus.

Definition of atomic weight in:

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