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1 jan 1918 ano - Pa

Descrição:

Проактиний
открыли Отто Ган, Лиза Мейтнер, Фредерик Содди и Джон Арнольд Кренстон

Adicionado na linha do tempo:

Chemical timeline

ByМаргарита

12 nov 2018

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550

Data:

1 jan 1918 ano

Agora

~ 107 years ago

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