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29 déc. 1913 - Р. Мейер предложил помещать все редкоземельные элементы в побочной подгруппе III группы периодической системы.
Ajouté au bande de temps:
Великие открытия в ХХ веке.
By
Юра
13 juin 2017
2
0
4127
Date:
29 déc. 1913
Maintenaint
~ Il y a 111 ans
Les images:
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