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jan 1, 1918 - Pa

Description:

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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Date:

jan 1, 1918

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~ 107 years ago

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