When two electrons collide, they do not physically touch due to their identical negative charges, which causes them to repel each other. This repulsion prevents them from getting close enough to interact in a traditional sense. Instead, they effectively "bounce off" each other, maintaining a distance dictated by their electromagnetic forces. This behavior is consistent with the principles of quantum mechanics and particle physics.
PREREQUISITESStudents in physics, educators explaining fundamental particle behavior, and anyone interested in the interactions of subatomic particles.
They don't. The repel each other remember - they'll never get close enough to touch ... it is even difficult to say what that would mean at that scale.What happens when 2 electrons collide?