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Spectroscopy ~ Emission Spectra Activity

EXAMPLES OF EMISSION SPECTRA

 

 

 

THINK QUESTIONS

  1. How do these emission spectra compare in terms of colors and numbers of emission line positions?

  2. Are the spectra identical?

  3. What if anything is similar?

  4. What is different?

 

Examine the spectra for the elements Na, Ne, Hg or He and answer the following questions.

  1. Element with greatest number of visible emission lines?

  2. Longest wavelength in the spectrum of this atom in nanometers?

  3. Color of light for this longest wavelength?

 

Examine the spectra for the elements Na, Ne, Hg or He and answer the following questions.

  1. Element with fewest number of emission lines?

  2. Longest wavelength in the spectrum of this atom in nanometers?

  3. Color of light for this longest wavelength?

  4. Why does a sodium vapor street light look yellow instead of white?

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