21 май 1911 г. - nuclear model
Описание:
In this model, the protons and neutrons, which comprise nearly all of the mass of the atom, are located in a nucleus at the center of the atom. The electrons are distributed around the nucleus and occupy most of the volume of the atom.Добавлено на ленту времени:
Дата:
21 май 1911 г.
Сейчас
~ 114 г назад