2. An electron in a hydrogen atom fell from the n-3 energy level to the n=2 energy level and emitted photons each having an energy of 3.03 x 10 19 Joules. a. Calculate the wavelength of the emitted photons in units of nm and identify the spectral region this wavelength corresponds to b. Calculate the frequency of emitted photons in units of Hz. Draw an energy level diagram that clearly shows the process that occurred. 3. Draw complete electron configurations for both arsenic and lead atoms