Concept information
Terme préférentiel
Photons
Type
-
mesh:Descriptor
Définition
- Discrete concentrations of energy, apparently massless elementary particles, that move at the speed of light. They are the unit or quantum of electromagnetic radiation. Photons are emitted when electrons move from one energy state to another. (From Hawley's Condensed Chemical Dictionary, 11th ed)
Concept générique
Qualificatif(s) autorisé(s)
Traductions
-
français
URI
http://data.loterre.fr/ark:/67375/JVR-W1TBC07S-N
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