A safe and interactive method of illuminating discharge tubes for studying emission spectra

• Autores: Zhe Lu
• Localización: Journal of chemical education, ISSN 0021-9584, Vol. 89, Nº 3, 2012, págs. 376-378
• Idioma: inglés
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• Resumen

  • Discharge tubes are useful tools for teaching emission spectra and the discrete energy levels of the Bohr model. A new setup uses a plasma globe to illuminate the discharge tube and allows a higher degree of interactivity owing to the omission of a traditional, high-voltage power source. The decreased power consumption also reduces the heating of discharge tubes, which is conducive both to increased interactivity and ease of use. Furthermore, the power source is a relatively inexpensive toy that is widely available.