How Bohr explanation of the hydrogen line emission spectrum led to the quantum mechanical model of the atom posted on May 8, 2019 A spectrum is the ‘picture’ you get when light interacts with atoms or molecules. A spectrum is usually a plot of how much light is absorbed or emitted versus the wavelength or frequency of light. For …Continue Reading about How Bohr explanation of the hydrogen line emission spectrum led to the quantum mechanical model of the atom →