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mar 30, 1869 - Dmitri Mendeleev
Description:
'The Dependence Between the Properties of the Atomic Weights of the Elements' was published in Russia and classified 63 elements in groups.
Added to timeline:
Atomic History_Kenealy
By
Rebecca Kenealy
3 Oct 2018
1
0
450
Date:
mar 30, 1869
Now
~ 157 years ago
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