pesdiscussion - Li 11.5 0.90 2 4 6 8 10 12 14 16 Number of...

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Experimental Evidence of Electron Configurations
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First ionization energy removes electron from outermost shell. PES measures the energy to remove one electron from any shell of a neutral atom. Energy of entering photon (h ν ) is larger than ionization energy (Ie), so the electron leaves the atom with excess kinetic energy (KE), which PES measures. h ν = Ie + KE known (scanned) measured determined h ν n = KE Ie Photoelecton Spectroscopy (PES)
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1.31 0 2 4 6 8 10 12 14 16 Number of Electrons Energy (MJ/mol) H
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2.37 0 2 4 6 8 10 12 14 16 Number of Electrons Energy (MJ/mol) He
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6.26 0.52 0 2 4 6 8 10 12 14 16 Number of Electrons Energy (MJ/mol)
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Unformatted text preview: Li 11.5 0.90 2 4 6 8 10 12 14 16 Number of Electrons Energy (MJ/mol) Be 19.3 1.36 0.80 2 4 6 8 10 12 14 16 Number of Electrons Energy (MJ/mol) B 28.6 1.72 1.09 2 4 6 8 10 12 14 16 Number of Electrons Energy (MJ/mol) C 39.6 2.45 1.40 2 4 6 8 10 12 14 16 Number of Electrons Energy (MJ/mol) N 52.6 3.12 1.31 2 4 6 8 10 12 14 16 Number of Electrons Energy (MJ/mol) O 67.2 3.88 1.68 2 4 6 8 10 12 14 16 Number of Electrons Energy (MJ/mol) F 84.0 4.68 2.08 2 4 6 8 10 12 14 16 Number of Electrons Energy (MJ/mol) Ne...
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This note was uploaded on 04/09/2009 for the course CHEM 151 taught by Professor Staff during the Fall '08 term at University of Arizona- Tucson.

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pesdiscussion - Li 11.5 0.90 2 4 6 8 10 12 14 16 Number of...

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