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14 май 1903 г. - Marie and Pierre Curie

Описание:

They discovered two new spontaneously radiating elements, which they named polonium and radium. A third element, actinium, was discovered by their colleague Andre Debierne.

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Atomic Timeline

ByTrinity Johnson
27 сен 2018
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14 май 1903 г.
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~ 122 г назад
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