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A closer look at the spectrum of helium

 

作者: Michael C. Lo Presto,  

 

期刊: The Physics Teacher  (AIP Available online 1998)
卷期: Volume 36, issue 3  

页码: 172-173

 

ISSN:0031-921X

 

年代: 1998

 

DOI:10.1119/1.879994

 

出版商: American Association of Physics Teachers

 

关键词: diffraction grating;atomic spectra;helium;wavelength;energy level diagram

 

数据来源: AIP

 

摘要:

When observing the spectrum of helium in an introductory physics laboratory, a complete and satisfactory laboratory experience that provides insight into the connection between the observed wavelengths and the structure of the atom, is more difficult to achieve than when observing hydrogen. The reason for this is that a complete diagram of the observed helium spectrum and the accepted wavelengths are much harder to find in readily available references than they are for hydrogen. Using a reference that does provide this information, I have developed what I believe is a more complete and informative experiment on the spectrum of helium that other ! !physics instructors may find useful.

 

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