Hydrogen has an emission spectra as show below, with four lines in the visible light range that have very specific wavelengths. The wavelength (A) results from the energy difference of atomic energy levels as the electrons drops from a higher level to a lower level. The energy of the photon that is emitted can be calculated using the following equation: Ephoton hc 2 h = 6.626 x 10-34 J-s (Planck's constant) c = 3.00 x 108 m/s (speed of light) What is the relationship between the energy of a photon and the wavelength of EM radiation