Ebyebulungulo (the orbitals) bisengekeddwa mu miyitiro (shells) n’obuyitiro (subshells), ate emitendera gy’amasoboza gye gimu okujjako nti mu bibiina ebya waggulu emiyitiro (shells) giyitibwa bire bya busannyalaza(electron clouds), kyokka byombi bitegeeza kye kimu.