When one material is rubbed against another, electrons jump readily from one to the other. why don't protons do that? 1. electrons can attract each other while protons repel each other. 2. electrons are easily dislodged from the outer regions of atoms, but protons are held tightly within the nucleus. 3. electrons are much heavier than protons. 4. electrons are much lighter than protons. 5. electrons travel at the speed of light while protons move very slowly?