15 янв 1829 г. - Law of Triads
Описание:
In 1829, Döbereiner, who grouped elements based on similarities. He announced his law of triads, which leads us to his invention of three chemically similar elements grouped together in which the properties of the middle element could be inferred from the lighter and heavier ones.Добавлено на ленту времени:
Дата:
15 янв 1829 г.
Сейчас
~ 196 г назад