Bohr Model


by JDiorio
Tags: bohr, model
JDiorio
JDiorio is offline
#1
Nov30-09, 12:43 PM
P: 26
1. The problem statement, all variables and given/known data
In the Bohr model of a hydrogen atom, what is the magnitude of the electric force exerted between the proton and the electron when the electron is in the n = 1 state?


2. Relevant equations
E= - 13.6 eV/ n^2


3. The attempt at a solution

I simply plugged in the value for n and got an answer of -13.6 eV. I do not understand why this is incorrect. This is an online homework assignment and asks for the answer in N. Is this where I am making my mistake? Or am I using the wrong formula?
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Redbelly98
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#2
Nov30-09, 12:53 PM
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You calculated an energy. The problem asks for a force. Force and energy are different.

What equation have you been given that can be used to calculate the force between two charges?
JDiorio
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#3
Nov30-09, 01:00 PM
P: 26
ohh.. so i just use F= kq1q2/r^2

and since it is in the n=1 state, i would use Bohr's radius for r... correct?

Redbelly98
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#4
Nov30-09, 01:00 PM
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Bohr Model


Yes, that's right.
JDiorio
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#5
Nov30-09, 01:02 PM
P: 26
Thank you!..


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