31 дек 1931 г. - James Chadwick discovered that atoms consisted not only of protons and electrons but also neutrons. Chadwick discovered the neutron, a neutral subatomic particle that has approximately the same mass as a proton. Neutrons occupy the nucleus of the atom.

Добавлено на ленту времени:

Timeline of the History of Atomic Theories

ByTara Guo

7 мес назад

1

0

40

Дата:

Изображения: