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25 июн 1875 г. - Discovery of Gallium

Описание:

Gallium was found, at had the exact atomic mass and properties that Mendeleev had predicted 4 years earlier.

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Development of Periodic Table

ByKarl Stücker

26 ноя 2018

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408

Дата:

25 июн 1875 г.

Сейчас

~ 150 г назад

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