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1 gen 1918 anni - Pa

Descrizione:

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

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Chemical timeline

ByМаргарита

12 nov 2018

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550

Data:

1 gen 1918 anni

Adesso

~ 107 years ago

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