Concept in Definition ABC

In thePhysicalthe Photon he is that particle of light that propagates in the void. The photon is the particle responsible for the quantum manifestations of the electromagnetic phenomenon, because it is a carrier of all forms of electromagnetic radiation, including the gamma rays, x-rays, ultraviolet light, infrared light, radio waves, microwaves, among other.

When presenting an invariant mass, the photon travels through the vacuum at a velocity constant, while, by presenting corpuscular and wave properties, the photon will behave like a wave in phenomena such as the refraction of a lens and at the same time as a particle, when it interacts with matter to transfer a fixed amount of Energy.

Originally to the photon, Albert Einstein he called him how much light, although, later it would be given the current name of photon, which derives from a Greek word that precisely means light. The change occurred in the year 1926 and physicist Gilbert Lewis was responsible for him.

In the context of physics, the photon is used to symbolize the gamma greek letter Y; most likely the job This letter has to do with the fact that it comes from gamma rays.
On the other hand, at the behest of chemistry and engineering Optical photons are symbolized by the following symbol: hv, which in turn represents the energy associated with a photon.

Among its main characteristics or physical properties are: that it does not have mass as well as electric charge and that it does not spontaneously disintegrate in a vacuum.

Photons are emitted in many natural processes such as, for example, when a particle is accelerated with electric charge for the duration of a molecular transition, or when a particle is annihilated with its antiparticle.