Overview To introduce the concept of absorption and emission line spectra and describe the Balmer equation to describe the visible lines of atomic hydrogen . Describe Rydberg's theory for the hydrogen spectra . Interpret the hydrogen spectrum in terms of the energy states of electrons. Learn about the hydrogen spectrum , the emission of light by excited hydrogen atoms, and its quantized energy levels. Find out the formula for calculating the wavelength of hydrogen spectral lines and the names of different series. Hydrogen spectral series The spectral series of hydrogen, on a logarithmic scale. The emission spectrum of atomic hydrogen has been divided into a number of spectral series, with wavelengths given by the Rydberg formula. These observed spectral lines are due to the electron making transitions between two energy levels in an atom. Explains the measured hydrogen spectrum , including its spectral lines and their significance in understanding atomic structure and quantum mechanics.