atomic emission spectra

Atomic emission spectra occur when atoms absorb energy and then release it as light. When an atom's electrons gain energy, they jump to higher energy levels; when they fall back to lower levels, they emit specific amounts of light, creating distinct colors or lines. Each element has a unique pattern of these emission lines, acting like a fingerprint. Scientists use these spectra to identify elements in stars, lamps, and other sources. Essentially, atomic emission spectra reveal the specific wavelengths of light emitted by excited atoms, helping us understand their composition.