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28 dic 1944 anni - Lanthanides & Actinides

Descrizione:

- Glenn Seaborg lanthanides and actinides (atomic no>92), which are usually placed below the periodic table.

Aggiunto al nastro di tempo:

THE PERIODIC TABLEEEE

ByLin beibei
8 feb 2018
0
0
304

Data:

28 dic 1944 anni
Adesso
~ 79 years ago
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