Using the Rydberg Equation

H-Atom ()

Moderators: Chem_Mod, Chem_Admin

K Stefanescu 2I
Posts: 68
Joined: Fri Sep 29, 2017 7:04 am

Using the Rydberg Equation

Postby K Stefanescu 2I » Mon Oct 09, 2017 12:54 pm

On question 1.15, I understood how to solve for n1 and n2 in every respect besides why we assume that n1=1. The way the textbook solves it requires that we assume n1=1 in order to find n2=3. Why is this the case? Does this apply in every scenario?
Thank you in advance.

Chem_Mod
Posts: 18400
Joined: Thu Aug 04, 2011 1:53 pm
Has upvoted: 435 times

Re: Using the Rydberg Equation

Postby Chem_Mod » Mon Oct 09, 2017 2:02 pm

Please type out the question from the text so that is it easier for students to see.

Chem_Mod
Posts: 18400
Joined: Thu Aug 04, 2011 1:53 pm
Has upvoted: 435 times

Re: Using the Rydberg Equation

Postby Chem_Mod » Mon Oct 09, 2017 2:14 pm

The wavelength falls within the range of wavelengths (97-122 nm) that would constitute the Lyman Series. This has not yet been talked about, however all you need to know is that the final energy energy level of an electron that emitted this wavelength range of light will be n=1. Subsequently, the Balmer Series refers to a range of wavelengths (410-656 nm), which corresponds to the final energy level of an electron being n=2. Hope this helped.

Alissa Stanley 3G
Posts: 22
Joined: Fri Sep 29, 2017 7:06 am
Been upvoted: 1 time

Re: Using the Rydberg Equation

Postby Alissa Stanley 3G » Wed Oct 11, 2017 12:39 pm

Is it essential to memorize which series corresponds to each n? And what wavelengths correspond to each series?

Guangyu Li 2J
Posts: 50
Joined: Fri Sep 29, 2017 7:07 am
Been upvoted: 1 time

Re: Using the Rydberg Equation

Postby Guangyu Li 2J » Fri Oct 13, 2017 11:46 pm

The given solution turns E/h to v first that we can set up an equation. Since we know the one of the n, we can figure the other one through the formula more easily.


Return to “Bohr Frequency Condition, H-Atom , Atomic Spectroscopy”

Who is online

Users browsing this forum: No registered users and 1 guest