Wave Nature of Electrons.docx - Wave Nature of Electrons...

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Wave Nature of ElectronsObjectiveIn this lesson, you should be able to:cite experimental evidence showing that electrons can behave likewaves.Learn about it!De Broglie WavelengthLouis de Broglie (1892–1987) postulated that if light with a wavephenomenon acts like a particle, then a particle may also have a wave-like behavior. He further theorized that the wavelength of a particle isrelated to Planck’s constant and is inversely proportional to itsmomentum. This relationship is represented by the equation known asthe de Broglie wavelength. The de Broglie wavelength of a particle isinversely proportional to the momentum of the particle. Thewavelength shows the wave nature of the electron, whereas themomentum shows its particle nature.Davisson and Germer’s ExperimentIn 1927, Clinton Davisson (1881–1958) and Lester Germer (1896–1971) tried to verify a prediction of classical physics that scattered
electrons will appear from all directions with little dependence ontheir intensity, scattering angle, and energy of the primary beam.They expected that because of the small size of the electrons, theywould still be experiencing diffused reflection even if they hit asmooth surface like that of a crystal.

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Term
Summer
Professor
NoProfessor
Tags
Electron, Diffraction, Light, Matter wave, electron diffraction tube

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