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Topic: wavelength problem - electron going from n= 5 to n = 2  (Read 7444 times)

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Offline nightowl1

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wavelength problem - electron going from n= 5 to n = 2
« on: October 12, 2009, 05:38:45 AM »
What is the wavelength in nm of the light emitted by an electron going from n=5 to n=2 level in a hydrogen atom?
« Last Edit: October 12, 2009, 05:50:28 AM by nightowl1 »
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Offline Borek

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Re: wavelength problem - electron going from n= 5 to n = 2
« Reply #1 on: October 12, 2009, 06:20:58 AM »
What equations related to the problem do you know?
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Offline nightowl1

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Re: wavelength problem - electron going from n= 5 to n = 2
« Reply #2 on: October 12, 2009, 06:25:09 AM »
E = Rh ( 1/n2f  -  1/n2i)
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Offline Borek

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Re: wavelength problem - electron going from n= 5 to n = 2
« Reply #3 on: October 12, 2009, 07:13:56 AM »
Close. You will need another one, that combines energy with wavelength.
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