Gases and Spectra

  • Stephen Tonkin
Part of the Patrick Moore’s Practical Astronomy Series book series (PATRICKMOORE)


The model of the atom that is useful in spectroscopy is that in which it is subdivided into three pricipal subatomic particles: proton, neutrom and electron. The multiplicity of other subatomic particles that have been discovered by physicists are important for the under-standing of cosmology and of atomic physics, but their consideration is not necessary for the understanding of the formation of spectra. The two properties of the three principal particles that we need to consider are their mass and their electric charge, as shown in Table 2.1.


Spectral Line Metastable State Continuous Spectrum Energy Level Diagram Will Emit 
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© Springer-Verlag London 2002

Authors and Affiliations

  • Stephen Tonkin

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