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Chemistry
Aleena Day
22 November, 13:35
What is an atomic weight?
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Dinky
22 November, 17:33
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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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