Aprincipal quantum number refers to:
the numbered energy levels starting from the nucleus outward
the total energy of an electron
the maximum number of electrons at a given level
the s, p, d, f levels

Energy defines the different "states" of matter. in no more than 3 sentences, describe the amount of kinetic energy that each of the 3 states of matter possesses and relate that to the atom/molecular motion of each "state".