Problem 3 An excited hydrogen atom is the 2st configuration. a) Give an expression for 1) the radial part of the wavefunction (Rn(r)). 2) the angular part of the wavefunction (Y1,m,(0,)). b) Determine the location (r > 0) along r where there is zero probability of finding the electron (in units of ao). c) Give the term symbol of the 2st configuration. d) Can the atom decay to the ground state through the emission of a photon?