25 дек 1803 г. - Dalton's atomic theory: Created by John Dalton; Proposed the theory 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:
25 дек 1803 г.
Сейчас
~ 220 г назад
