Wave Properties of Electrons

Shannon Asay 1C
Posts: 72
Joined: Fri Aug 09, 2019 12:16 am

Wave Properties of Electrons

I had some trouble understanding in today's lecture how electron's exhibit wave-like properties and I was wondering if someone could help explain that a bit better?

Andrew F 2L
Posts: 68
Joined: Sat Aug 17, 2019 12:17 am

Re: Wave Properties of Electrons

Hey!
So Electrons have something called a Wave-Particle duality where they exhibit characteristics of both. There's an experiment where if electrons pass through a double slit and hit a screen behind the slits, they create a pattern of bright and dark bands which shows that they act like waves and have a wavelength like any other wave. Also, de Broglie showed that the electrons behaved like waves with certain frequencies that matched energy levels where electrons were found. I also found the internet which might help: "When UV light hits a metal surface, it causes an emission of electrons. Albert Einstein explained this "photoelectric" effect by proposing that light – thought to only be a wave – is also a stream of particles"

Hope this helped !

Alison Trinh 1E
Posts: 69
Joined: Thu Jul 25, 2019 12:16 am

Re: Wave Properties of Electrons

Also, it was mentioned during lecture that electrons must have wavelike properties because they give rise to a diffraction pattern that result from interacting waves.

BritneyP- 2c
Posts: 65
Joined: Sat Sep 14, 2019 12:15 am

Re: Wave Properties of Electrons

The way I see it, small subatomic particles have a wave like property to them, which helps them move and repel around. As the object gets larger, they move less and have less of a wavelength property.

Abhi Vempati 2H
Posts: 66
Joined: Fri Aug 09, 2019 12:17 am

Re: Wave Properties of Electrons

As many people here are stating, electrons were determined to have wave-like properties due to the diffraction patterns created during the double slit and screen experiment. It was known that diffraction patterns were a key characteristic of waves, so when the experiment resulted in diffraction patterns, scientists logically concluded that an electron possessed wave-like properties. Simply put, waves --> diffraction patterns, electron experiment --> diffraction patterns, so electrons = waves.

That was the main focus of the lecture on Friday, as we didn't go into full detail about wave functions and orbitals. Hope that helps!