Experiments of electrons

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Experiments of electrons

Postby 605324529 » Sun Jan 12, 2020 9:14 pm

In which experiment does the electron behave like a wave? In which one does it behave like a particle?

Justin Vayakone 1C
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Re: Experiments of electrons

Postby Justin Vayakone 1C » Mon Jan 13, 2020 1:46 pm

The photoelectric experiment (photons shined on a metal surface which ejected electrons) showcases the particle property of electrons. For the wave property of electrons, I don't know the name, but I think the experiment involved particles passing through a hole in a wall, then a detector at the end found patterns of waves.

George Cazares 1E
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Re: Experiments of electrons

Postby George Cazares 1E » Mon Oct 12, 2020 11:41 am

In the photoelectric effect, it was found that electrons behaved as particles. After doing a quick internet search, I found that the experiment that found that electrons have some wave-like properties was the double-slit experiment by Thomas Young.

isha dis3d
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Re: Experiments of electrons

Postby isha dis3d » Mon Oct 12, 2020 11:53 am

An easy way to remember that electrons behave as particles in the photoelectric experiment is to remember that when intensity of light was increased, it did not help to remove any more electrons from the metal. Here, increasing intensity of light increased the wavelength which had no effect on the electrons emitted. If light only had wavelike properties, than the increasing intensity should have ejected electrons. However, frequency of light is at play, where increasing the frequency increases the energy of the photon as shown by the equation E=hv, which then helps the electron be emmited. This electron is measure using its kinetic energy, which can be taken of particles themselves rather than waves.

Keeryth Sandhu 1H
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Re: Experiments of electrons

Postby Keeryth Sandhu 1H » Mon Oct 12, 2020 12:32 pm

In the photoelectric experiment, electrons behave as particles because when the light intensity was increased, the electrons were not emitted. I'm not sure about the experiment regarding wave properties.

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Re: Experiments of electrons

Postby 905290504 » Mon Oct 12, 2020 1:57 pm

in lecture 5 (todays lecture), lavelle explains the properties of electrons and how they have wave-like behavior in the photoelectric experiment. the module on the chem 14a website titled "wave properties and the debrogile equation" is very helpful for understanding when and how objects and particles behave like waves

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