15 окт 1808 г. - John Dalton
Описание:
Dalton's atomic theory proposed that all matter was composed of atoms, indivisible and indestructible building blocks. While all atoms of an element were identical, different elements had atoms of differing size and mass.Добавлено на ленту времени:
Дата:
15 окт 1808 г.
Сейчас
~ 215 г назад
