Mass spectrometery

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1. Why does the sample need to be ionized?

  • So particles can be accelerated and deflected
  • So particles can only be deflected
  • So particles can be made lighter
  • So particles can only be accelerated
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2. How are ions accelerated?

  • Pushed by electricity
  • + ions attracted to - plates; pass through slits between plates
  • Propelled by kinetic energy
  • Shot by the electron gun

3. What does the mass spectrometery machine do?

  • Interprets graphs
  • Analyses element samples
  • Interprets vibrations
  • Analyses wavelengths

4. What is the rule of thumb about ion movement?

  • Gradually become slower over distances
  • Move in a straight line unless a force is applied
  • Able to take bends
  • Will continually spread out

5. How many electrons does the electron gun knock off each atom

  • One
  • Four
  • Two
  • Three


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