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Atomic Emission Spectra

Atomic Emission Spectra. First Ionization Energies. IE Excel File. He. Ne. F. N. O. C. Be. B. Li. Successive Ionization Energies (kJ/ mol ). Photoelectron Spectroscopy. based on photoelectric effect monochromatic light shone on sample, causes e- to be emitted

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Atomic Emission Spectra

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  1. Atomic Emission Spectra

  2. First Ionization Energies IE Excel File

  3. He Ne F N O C Be B Li

  4. Successive Ionization Energies (kJ/mol)

  5. Photoelectron Spectroscopy • based on photoelectric effect • monochromatic light shone on sample, causes e- to be emitted • kinetic energy of emitted e- measured • difference between the energy of photons used (h) and the kinetic energy (KE) of the ejected e- equals the energy needed to remove the e- IE = h  - KE

  6. Images from http://media.collegeboard.com/digitalServices/swf/ap-webcasts/chemistry/ap_chem_pes.html

  7. Images from http://media.collegeboard.com/digitalServices/swf/ap-webcasts/chemistry/ap_chem_pes.html

  8. Images from http://media.collegeboard.com/digitalServices/swf/ap-webcasts/chemistry/ap_chem_pes.html

  9. Photoelectron Spectroscopy IE = h  - KE

  10. Photoelectric Spectrum of Lithium 6.26 0.52

  11. Photoelectric Spectrum of Beryllium 11.5 0.90

  12. PES of Lithium and Beryllium

  13. Photoelectric Spectrum of Boron?

  14. Photoelectric Spectrum of Boron 1.36 19.3 0.80

  15. Photoelectric Spectrum of Carbon 28.6 1.72 1.09

  16. Given the complete PES spectrum below, identify the element and write its electron configuration. Two More Q’s

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