Yes the photon is the quantum unit of Electromagnetic Radiation...

  1. 5,428 Posts.
    lightbulb Created with Sketch. 75
    Yes the photon is the quantum unit of Electromagnetic Radiation and visible light belongs to that set. The quantum unit of electricity is the electron and the energy associated with it is the electron volt.
 
arrow-down-2 Created with Sketch. arrow-down-2 Created with Sketch.