Discovering Unknown Gases: Using Quantum Numbers for Spectrum Analysis

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SUMMARY

This discussion focuses on identifying unknown gases using quantum numbers and spectrum analysis techniques. The participant is experimenting with gas tubes and utilizing the equation 1/lambda = RZ^2 (1/n_f + 1/n_i) to deduce the gas composition. While this method works for small atomic species like Hydrogen and Helium, it proves inadequate for larger atoms such as Oxygen. The participant seeks additional methods to incorporate other quantum numbers into their calculations for better accuracy in identifying diatomic and larger atomic species.

PREREQUISITES
  • Understanding of quantum numbers and their significance in atomic structure
  • Familiarity with spectrum analysis techniques and grating methods
  • Knowledge of the Rydberg formula for spectral lines
  • Basic principles of quantum physics and atomic theory
NEXT STEPS
  • Research advanced methods for spectrum analysis of diatomic gases
  • Learn about the Rydberg constant and its applications in identifying elements
  • Explore quantum number variations for larger atomic species
  • Investigate software tools for modeling quantum states and spectral data
USEFUL FOR

Students and researchers in quantum physics, chemists working with gas analysis, and anyone interested in the application of quantum numbers for identifying unknown gases through spectrum analysis.

MonsieurWise
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Uhm...I'm doing some experiment with some unknown gas tubes. I have a spectrum when I use the grating. Can I, by some ways, use the quantum numbers to identify what the gas inside is...? I've heard of one method, but I could not find the name. Thank you in advance.
 
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In principle you can, if you can find out the whether or not it is an atomic species or diatomic species you should be able to figure out the gas...
 
Oh yeah, I used only atomic species (like just Lithium gas or hydrogen gas, is that what u mean...?). Is there a way I can identify the mystery gas?
The way I'm trying right now is to use the equation 1/lambda = RZ^2 (1/n_f + 1/n_i), play around with the numbers to guest n_f and n_i, plot the points on a graph, with (1/n_f + 1/n_i) on the x-axis and (1/lambda) for y-axis. The linear best fit line should give me a slope of RZ^2, and that would be how I find Z, thus the element.
However, I found this method is way too simple and I can just apply it to small atoms, such as Hydrogen or Helium. For big atom like Oxygen...well, I failed miserably. I searched but find no other methods to include the others quantum numbers into calculation. Could you show me a website that introduce the method?
this is the first time I've done anything with Quantum Physics...sorry if my questions seems stupid...
Thank you very much!
 

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