The protons are quantitatively charged, while the neutrons are neutrally charged. Now, the electron is found orbiting our atom, our nucleus. And the distance between our nucleus and the electron is quite large. And in fact, atoms are mostly composed of empty space. And in fact, if our atom with the size of a football field, our nucleus will be the size of a marble. So you can imagine that our entire atom, for the most part, is composed of empty space.