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009 - Mass SpectrometryIn this video Paul Andersen explains how a spectrometer was used to identify the presence of isotopes. This modified Dalton's original atomic theory because atoms of the same element had different masses. The functional parts of a mass spectrometer are detailed including the ionizer, mass analyzer and the detector. A simulation of Chlorine isotopes along with an average atomic mass calculation is included.


  • Science > General
  • Science > Chemistry

Education Levels:

  • Grade 9
  • Grade 10
  • Grade 11
  • Grade 12


Isotope Spectrometer Spectrometry Atoms Chemistry



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