Colours and Light Frequency

The reason why we see colours is because of emission spectra as they represent the specific wavelengths of light emitted by an atom or molecule when its electrons transition from a higher energyEnergy is the ability to do work. Energy exists in several forms such as heat, kinetic or mechanical energy, light, potential energy, and electrical energy. Units of Energy: The SI unit... More state to a lower one, with each transition producing a distinct colour of light depending on its energy level; different elements have unique emission spectra, leading to different visible colours when excited.

When an electron falls from a higher energy level to a lower energy level, it