Final answer:
When an electron goes from an excited state back to the ground state, it emits light and returns to a lower energy level. This process is known as emission of light or fluorescence.
Step-by-step explanation:
When an electron goes from an excited state back to the ground state, it releases the energy it gained in the form of light. This is known as emission of light or fluorescence. The electron transitions from a higher energy level to a lower one, and with each transition, it emits a photon of light with a wavelength corresponding to the energy difference between the levels. The atom returns to its ground state by either making the transition in one jump or in steps of multiple jumps.
When an electron goes from an excited state back to the ground state, colored light is given off. The process involves an electron dropping from a higher energy level to a lower one and emitting a photon of light that corresponds to the energy difference between the two levels. This emitted light is often visible and contributes to the characteristic spectra of elements. Atoms may release this energy in a single transition or through multiple steps, moving through intermediate energy levels, each releasing a photon of specific wavelength.