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1 janv. 1914 - In 1914 T. W. Richards found variations between the atomic weight of lead from different mineral sources, attributable to variations in isotopic composition due to different radioactive origins
Ajouté au bande de temps:
6 nov. 2019
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History of isotopes
Date:
1 janv. 1914
Maintenaint
~ Il y a 110 ans