Quantum Mechanics and Spectroscopy- Spectroscopy in Large Lecture Halls

Spectroscopy in Large Lecture Halls

Description: Gas discharge tubes are activated by a high-voltage source. The emitted light is viewed through diffraction grating by students. Line spectra can be seen for hydrogen, helium, mercury, and neon. Source: Journal of Chemical Education Year: 1988 Vol: 65 Page: 266 Keywords: Discharge Lamp, Diffraction, Hydrogen, Helium, Mercury, Neon, Emission Spectra Rating:

Hazard: Low

Electrical shock hazard
Breakage hazard

Effectiveness: Good

Results are observable with guidance
Good connection from demo to course material
Good reliability
Moderate failure rate
Time to results is low
Mild effects are seen by audience

Difficulty: Medium

Accurate alignment required
Demos in which objects are passed out to students
Simple procedures
Careful handling of lamps required

Safety Precautions:

Use of UL approved three-prong plug and outlet
Gloves required when handling glass

Class: Atomic Structure, Spectroscopy, Quantum Mechanics, Atomic Emission Division: General Chemistry, Inorganic Chemistry, Physical Chemistry

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