Insights Blog
-- Browse All Articles --
Physics Articles
Physics Tutorials
Physics Guides
Physics FAQ
Math Articles
Math Tutorials
Math Guides
Math FAQ
Education Articles
Education Guides
Bio/Chem Articles
Technology Guides
Computer Science Tutorials
Forums
Intro Physics Homework Help
Advanced Physics Homework Help
Precalculus Homework Help
Calculus Homework Help
Bio/Chem Homework Help
Engineering Homework Help
Trending
Featured Threads
Log in
Register
What's new
Search
Search
Search titles only
By:
Intro Physics Homework Help
Advanced Physics Homework Help
Precalculus Homework Help
Calculus Homework Help
Bio/Chem Homework Help
Engineering Homework Help
Menu
Log in
Register
Navigation
More options
Contact us
Close Menu
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Forums
Homework Help
Introductory Physics Homework Help
Electromagnetic emission lines for a hydrogen atom
Reply to thread
Message
[QUOTE="Jdraper, post: 4963035, member: 451886"] [h2]Homework Statement [/h2] Hi, I've been unable to find a relevant thread for a question that I've been stuck on for a couple of days now. Here it is; One of the electromagnetic emission lines for a hydrogen atom has wavelength 389nm. Assiming that this is a line from one of the Lyman (n[SUB]f[/SUB] =1 ), Balmer (n[SUB]f[/SUB] = 2) or Paschen (n[SUB]f[/SUB] =3) series, what is the initial principle quantum number associated with the transitions? The Rydberg energy can be assumed to be 13.6eV [h2]Homework Equations[/h2] ΔE=Ry(1/(n[SUB]i[/SUB])[SUP]2[/SUP] - 1/(n[SUB]f[/SUB])[SUP]2[/SUP])) Ry=13.6eV This is the formula used to attempt a solution There is another formula in my notes that may be helpful but i do not understand the symbols within it, it is; E[SUB]n,l[/SUB] = -Ry/(n-δ[SUB]l[/SUB])[SUP]2[/SUP] [h2]The Attempt at a Solution[/h2] Using the equation ΔE=Ry(1/(ni)2 - 1/(nf)2)) and then equating this change in energy to the energy of light E=hc/λ. Ry=13.6eV Then I insert various n[SUB]f[/SUB] 's e.g. n[SUB]f[/SUB] =1 for Lyman, then i would solve this for n[SUB]i[/SUB] to see if i get an integer number, indicating that this is correct. I do this for n[SUB]f[/SUB] =1,2 and 3 and I have never got an integer number leading me to believe my method is incorrect. Any help or insight would be appreciated, Thanks in advance, John. [/QUOTE]
Insert quotes…
Post reply
Forums
Homework Help
Introductory Physics Homework Help
Electromagnetic emission lines for a hydrogen atom
Back
Top