Energy of Electrons

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Jaclyn Schwartz 1I
Posts: 101
Joined: Wed Sep 30, 2020 9:45 pm

Energy of Electrons

Postby Jaclyn Schwartz 1I » Sun Nov 01, 2020 11:25 pm

How would I find the energy of an electron based on the wavelength? This is based on question 13 of sapling

Christine Ma 3L
Posts: 92
Joined: Wed Sep 30, 2020 9:35 pm

Re: Energy of Electrons

Postby Christine Ma 3L » Sun Nov 01, 2020 11:28 pm

To find the energy of an electron, you have to use de Broglie's equation and plug in Planck's constant, the given wavelength, and the mass of the electron to find v. Then use E=1/2 mv2 to find the energy. As a note, you can't use E=hν because that's for calculating the energy of a photon. Hope this helps!

Jaclyn Schwartz 1I
Posts: 101
Joined: Wed Sep 30, 2020 9:45 pm

Re: Energy of Electrons

Postby Jaclyn Schwartz 1I » Sun Nov 01, 2020 11:38 pm

Thank You!


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