Now, according to the Boris model, and for this particular atom, our electrons are orbiting in a perfect circle. So for this atom, we have two electrons found in this circle and two electrons found in the outer circular orbit. Now, as you may or may not know, Bored model is actually an inaccurate depiction of our atomic nucleus and electrons. And that's because electrons do not actually occupy these perfect or circular and spherical orbits. Now, Schrodinger described a pathway that our electrons follow using wave equations. So in other words, our electrons follow certain orbits, certain pathways that are not circular.