An emission line spectrum refers to a collection of distinct and sharp spectral lines emitted by an atom, molecule, or substance when it transitions from higher to lower energy states, releasing electromagnetic radiation in the form of light. Each line in the spectrum corresponds to a specific wavelength or frequency of light unique to the emitting element or compound. These spectral lines appear as bright lines against a dark background when the substance emits light. They are a result of electrons transitioning between quantized energy levels within the atomic or molecular structure. Each chemical element or compound produces a characteristic emission line spectrum due to its unique energy level configurations. Emission line spectra are crucial tools in astronomy, spectroscopy, and analytical chemistry. They facilitate the identification of chemical elements in distant celestial objects, help analyze the compositions of stars and galaxies, and enable the study of atomic and molecular properties and interactions in laboratory settings, contributing significantly to our understanding of matter and the cosmos.
