Q. 1. (15) Some of the energy levels of a hypothetical one electron atom (not hydrogen) are listed in the table below. n 1 2 3 4 5 En (eV) -15.60 -5.30 -3.08 -1.45 -0.80 Draw the energy level diagram and find (a) the ionization potential, (b) the short wavelength limit of the series terminating on n = 2, (c) the excitation potential for the state n = 3, (d) the wave number of the photon emitted when the atomic system goes from the energy state n = 3 to the ground state and (e) what is the minimum energy that an electron will have after interacting with this atom in the ground state if the initial kinetic energy of the electron was (i) 6 eV and (ii) 11 eV?