Introduction to Chemistry
Shells influence the atom's size by determining the number of protons present in the nucleus and affecting its overall structure.
Shells determine the size and energy level of an atom by defining the distance of electrons from the nucleus.
Shells only affect the atom's size and not its energy, since they do not influence the electron arrangement or energy levels.
Shells have no impact on the energy of an atom or on the arrangement of electrons within the atomic structure.