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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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1 janv. 1945 - Lanthanides and Actinides Identified
Description:
In 1945 Glenn Seaborg identified lanthanides and actinides (atomic number >92), which are usually placed below the periodic table.
Ajouté au bande de temps:
Chemistry Honors Assignment
By
AYLOR LUSZCZEK
1 oct. 2018
0
0
497
Date:
1 janv. 1945
Maintenaint
~ Il y a 80 ans
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