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Hydrogen Series

Posted: Mon Oct 16, 2017 6:43 pm
by Qining Jin 1F
In the textbook it said that the Lyman series is in the UV region and the Balmer series in the visible light. But it didn't mention the Paschen nor Brackett series. Do you think we need to know which region they are in?

Re: Hydrogen Series

Posted: Mon Oct 16, 2017 7:26 pm
by Lucian1F
I highly doubt that we need to memorize those series since they aren't in the textbook and I believe they haven't been covered in class either.

Re: Hydrogen Series

Posted: Tue Oct 17, 2017 4:26 pm
by Kyra LeRoy 1E
It may be important to remember that the Lyman is UV & Balmer is visible, because I noticed that in one textbook problem it says "in the UV region" but never says Lyman or n1=1, but the problem solution requires you to recognize that UV means n1=1. However, I can't see the other two being important if they were never covered in the textbook/lecture.

Re: Hydrogen Series

Posted: Tue Oct 17, 2017 9:27 pm
by Michelle Nguyen 2L
No, it's not necessary to know the specific lower energy levels of those line series; don't worry about it :D

Re: Hydrogen Series

Posted: Thu Oct 19, 2017 10:18 pm
by Ava Harvey 2B
Yes, I agree. I don't think we're expected to know the Paschen or Brackett series. However, I would memorize that for the Lyman series, all of the spectral lines go down to the energy level of n=1. For the Balmer series, all of the spectral lines go down to the energy level of n=2. Therefore, when solving problems with the Rydberg equation, you will plug in 1 (for the lower energy n) for the Lyman series and you will plug in 2 for the Balmer series. Also, I would know that the Lyman series is associated with ultraviolet radiation and the Balmer series is associated with visible light. Hope that helps!