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1 ene 1917 año - Objeven chemický prvek Protaktinium

Descripción:

Jako první identifikovali protaktinium Kasimir Fajans a O. H. Göhring jako produkt rozpadu uranu 238U. Pojmenovali jej brevium podle krátké doby života.

Añadido al timeline:

Objevy 1917 - 1932

ByANNA
7 dic 2018

fecha:

1 ene 1917 año
Ahora mismo
~ 107 years ago

Fotos:

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