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atomic spectrum and isotopes Rate Topic: -----

#1 16 December 2011 - 05:34 PM rogerxd45 


Meson
does the atomic spectrum emission or absorption by an ionized element change with different isotopes?

like would tritium have different atomic spectral lines then hydrogen1 or deuterium?

sorry just a random thought that popped into my head

This post has been edited by rogerxd45: 16 December 2011 - 05:36 PM

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#2 16 December 2011 - 06:00 PM John Cuthber 


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Yes, but only very slightly.
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#3 16 December 2011 - 07:28 PM User is online  swansont 


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It should make sense that they do — you change the shape of the nucleus with addition/subtraction of neutrons (which have a magnetic moment even though there is no charge) as well as the total spin, and you change the center of mass, so it should not be surprising that the fields the electron would experience undergo some subtle changes. There are terms known as the mass shift and the field shift that contribute to the isotope shift.

http://accessscience...pe-shift/357200

You can even get a shift in the same isotope if the nucleus has a metastable excited state (isomer)
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#4 17 December 2011 - 06:52 AM rogerxd45 


Meson
thank you both,

i was thinking it would be different even if is only a very small amount....i just love i when my random thoughts are correct :D
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