// todo need optimize like in event.jsp. Add indexing or not indexing this page. Lanthanides & Actinides (1 jan 1945 ano – 8 maio 1945 ano) (Linha do tempo)
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Lanthanides & Actinides (1 jan 1945 ano – 8 maio 1945 ano)

Descrição:

In 1945 Glenn Seaborg identified lanthanides and actinides (atomic number >92), which are usually placed below the periodic table.

Adicionado na linha do tempo:

History of the Periodic Table

ByGeorge Rodriguez
25 set 2018

Data:

1 jan 1945 ano
8 maio 1945 ano
~ 4 months and 7 days
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