Learn about the atomic spectrum of hydrogen , which consists of five series of lines: Lyman, Balmer, Paschen, Brackett and Pfund. Find out how the electrons in hydrogen atoms absorb and emit energies and produce different spectral regions. The hydrogen spectrum appears when the electron of the hydrogen atom jumps from a higher energy level to a lower energy level. Learn its wavelength, 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. Hydrogen Spectrum in Chemistry Hydrogen spectrum (absorption or emission) is an important type of tool for the determination of the atomic structure of chemical elements or atoms in quantum chemistry or physics. Bohr Model explained the existence of various electromagnetic spectrum lines in the hydrogen atom for the spectroscopic study.