26 июн 1799 г. - Law of definite proportion
Описание:
Joseph Louis Proust proposed this law that stated that" the masses of elements in a compound always occur in the same proportion".Source:
https://www.thoughtco.com/history-of-atomic-theory-4129185
Добавлено на ленту времени:
Дата:
26 июн 1799 г.
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~ 225 г назад
