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NALT Concept Space
U.S. Department of Agriculture

NALT Full

Concept information

  1. Research, Technology, Methods
  2. research
  3. animal research
  4. chemical substances
  5. elementary particles
  6. photons

Término preferido

photons

Tipo

  • Chemical

Definición

  • Information 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.

    Fuente: Medical Subject Headings 2016

    Tipo: Concept definition

Concepto genérico

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En otras lenguas

URI

https://lod.nal.usda.gov/nalt/273158

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