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Topic: History of chemistry - valency and atomic mass  (Read 1619 times)

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Offline MikeA

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History of chemistry - valency and atomic mass
« on: June 24, 2014, 08:59:14 AM »
As i understand it, when Mendeleev formed the periodic table, he had data on atomic mass and valency.
How did they work out both valency and atomic mass of the elements?

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