1A.15


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FDeCastro_1B
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Joined: Thu Jul 25, 2019 12:16 am

1A.15

Postby FDeCastro_1B » Sat Oct 12, 2019 6:58 pm

In the ultraviolet spectrum of atomic hydrogen, a line is observed at 102.6 nm. Determine the values of n for the initial and final energy levels of the electron during the emission of energy that leads to this spectral line.

How do I begin with this problem?

Katie Kyan 2K
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Re: 1A.15

Postby Katie Kyan 2K » Sat Oct 12, 2019 7:03 pm

Knowing that a line is observed in the UV spectrum of atomic hydrogen and that there is an emission of energy tells you that this is the Lyman Series where the initial energy level is n=1. Thus, you can use the equation speed of light = wavelength x frequency to find the frequency at 102.6 nm. Then you would use the Rydberg equation to solve for the final energy state. The answer should be that the transition is from n=1 to n=3.


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