• Support PF! Buy your school textbooks, materials and every day products Here!

Electronic transition; Emission Spectra

  • Thread starter Qube
  • Start date
  • #1
Qube
Gold Member
455
1

Homework Statement



A photon emitted during an electronic transition in a hydrogen atom has a wavelength of 486.2
nm. From what initial energy level (ni) did the electron transition?


Homework Equations



Energy = hc/wavelength (h = Planck's constant; c is speed of light; and wavelength is 486.2 nm or 486.2 x 10^-9 meters).

Energy = Rydberg's constant(1/n-final^2 - 1/n-initial^2)

The Attempt at a Solution



I calculated the energy but I I can't solve for two variables at once in one equation. How am I supposed to find the initial energy level when I have the final energy level?
 

Answers and Replies

  • #2
UltrafastPED
Science Advisor
Gold Member
1,912
216
An iterative search would soon find the levels ... a small computer program!
 

Related Threads on Electronic transition; Emission Spectra

  • Last Post
Replies
4
Views
3K
  • Last Post
Replies
3
Views
2K
  • Last Post
Replies
1
Views
887
  • Last Post
Replies
10
Views
503
Replies
12
Views
247
  • Last Post
Replies
2
Views
3K
  • Last Post
Replies
2
Views
3K
  • Last Post
Replies
1
Views
3K
  • Last Post
Replies
1
Views
1K
  • Last Post
Replies
4
Views
2K
Top