Pattyaughsu4ssen Pattyaughsu4ssen

07-07-2016
Chemistry

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What is an atomic weight?

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08-07-2016

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 (0.0625) the weight of an oxygen atom, but after 1961 based on 1/12 the weight of the carbon-12 atom.

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