The colors of elements 🌈🔎 When an electron transitions from a high energy level to a low energy level, it emits electromagnetic radiation, which includes photons (light particles). The energy of the photon is equal to the difference in energies of the energy levels, and it determines the color of the light particle. Photons with higher energies have shorter wavelengths and lean towards blues and violets, while photons with lower energies have longer wavelengths and lean towards reds. Every ele