Photon

Photon

A particle that has no rest mass, no electrical charge and whose energy is determined by its electromagnetic wavelength. A photon is considered to be an amount of electromagnetic radiation energy that is proportional to the frequency of that radiation. It may also be considered as a particle of light with energy, hv, where h is Planck's constant and v is the frequency of light.

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Part of Speech: noun
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Industry/Domain: Chemistry; Weather
Category: Atmospheric chemistry
Educational Institution: Sam Houston State University
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Related terms

photon

Energy; Nuclear energy

A quantum (or packet) of energy emitted in the form of electromagnetic radiation. Gamma rays and x-rays are examples of photons.

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The massless particle that, according to the quantum theory of radiation, carries the smallest discrete amount of electromagnetic energy ''h''ν, where ''h'' is Planck's constant ...

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Biotechnology; Genetic engineering

A quantum of light; the energy of a photon is proportional to its frequency; E = hv, where E is energy; h is Planck's constant, 6.62 × 10 -27 erg-second; and v is the ...

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Physics; Electromagnetism

The particle of energy that makes up light and other forms of electromagnetic radiation. A beam of light is a stream of photons.

Charles

Chemistry; Atmospheric chemistry

French scientist who formulated Charles's law in 1787. He was the first person to fill a large balloon with hydrogen gas, making it light enough to fly.