Demonstration: Spectra of different atoms

frequency (1014 Hz)

4.571

6.171

6.912

7.314

7.557

• Observe spectra of different gases

  • Individual grating for each student
  • Using interference - wave nature of light - to separate the different frequencies (colors)

Hydrogen

Neon - strong line in Red

Sodium - strong line in yellow (street lights)

Mercury - strong lines in red, blue (street lights)

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