### 7th Edition, Quantum Theory, #1.B.15

Posted:

**Sun Oct 21, 2018 8:39 am**I can't seem to figure our which equation to use in part a to calculate the wavelength of the electron. Does anyone know which equation is used?

Created by Dr. Laurence Lavelle

https://lavelle.chem.ucla.edu/forum/

https://lavelle.chem.ucla.edu/forum/viewtopic.php?f=14&t=34391

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Posted: **Sun Oct 21, 2018 8:39 am**

I can't seem to figure our which equation to use in part a to calculate the wavelength of the electron. Does anyone know which equation is used?

Posted: **Sun Oct 21, 2018 12:58 pm**

Did they state velocity of the electron? If so you would use the equation h/mv=wavelength. M is the mass of electron.

Posted: **Sun Oct 21, 2018 7:31 pm**

With h/mv can't this also be expressed as h/p?