Chemiluminescence
Chemiluminescence is the emission of light by an atom or molecule that is excited by energy supplied from the chemical reaction.
The atom or molecule becomes excited by an energy source which moves an electron from a low ground energy state to a higher "excited" state. The electron then de-excites and returns back to the lower ground state, while releasing the excess energy in form of a photon. The photon's wavelength varies depending on how far the electron has ''fallen'' from the (higher) excited state. All the photons with a wavelength within the visible spectrum form the colours we see.
Chemiluminescence is the emission of light by an atom or molecule that is excited by energy supplied from the chemical reaction.
The atom or molecule becomes excited by an energy source which moves an electron from a low ground energy state to a higher "excited" state. The electron then de-excites and returns back to the lower ground state, while releasing the excess energy in form of a photon. The photon's wavelength varies depending on how far the electron has ''fallen'' from the (higher) excited state. All the photons with a wavelength within the visible spectrum form the colours we see.