21 mai 1911 - nuclear model
Description:
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.Ajouté au bande de temps:
Date:
21 mai 1911
Maintenaint
~ Il y a 114 ans