Energy level

  • Thread starter MIA6
  • Start date
  • #1
MIA6
233
0

Homework Statement


An experiment is performed on a sample of atoms known to have a ground state of -5.0eV. The gas is illuminated with "white light" (400-700 nm). A spectrometer capable of analyzing radiation in this range is used to measure the radiation. The sample is observed to absorb light at only 400 nm. After "the white light" is turned off, the sample is observed to emit visible radiation of 400 nm and 600 nm. Determine the values of the energy levels
i. the ground state ii. the energy level to which the system was first excited

The Attempt at a Solution



I think the question already gave us the ground state, but how do I find the energy level if I don't know which atom it is.
Thanks.
 

Answers and Replies

  • #2
alphysicist
Homework Helper
2,238
2
Hi MIA6,

When light of wavelength 400nm is absorbed, what is happening to the individual atoms? There is an energy that corresponds to 400nm; what is that energy and how is that energy related to the energy levels of the atom?
 

Suggested for: Energy level

  • Last Post
Replies
6
Views
703
  • Last Post
Replies
3
Views
548
  • Last Post
Replies
14
Views
517
Replies
2
Views
540
  • Last Post
Replies
6
Views
426
  • Last Post
Replies
2
Views
137
  • Last Post
Replies
4
Views
346
Replies
7
Views
98
Top