Meaning Of The Word Atomic weight

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Atomic weight Meaning

Atomic weight Definition
Atomic weight Definition

What's The Definition Of Atomic weight?

atomic weight in American English
the weight of one atom of an element expressed in atomic mass units: it is the average weight of all the isotopes of the element
noun: the average weight of an atom of an element, formerly based on the weight of one hydrogen atom taken as a unit or on 1⁄16 the weight of an oxygen atom, but after 1961 based on 1⁄12 the weight of the carbon-12 atom

atomic weight in British English
noun

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