Ch 5.3 electron - Exceptions to Electron Configuration...

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Chapter 5 53 Exceptions to Electron Configuration Rules • Orbital sub-shells that are completely filled or exactly half-filled are especially stable. – ie • What are the electron configurations of Cu, Cr?
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Chapter 5 54 Lots of Exceptions for d- and f-block Elements • Energy levels are very closely spaced. • Relativistic effects. PRS Reminder
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Chapter 5 55 Periodic Trends of Atomic Properties • Ionization Energy • Electron Affinity • Atomic Radius
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Chapter 5 56 Electron Shielding The periodic trends we will discuss are strongly effected by electron shielding or screening . Shielding increases as we move down the periodic table. . Shielding increases as we move from left to right across the periodic table.
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Chapter 5 57 Electron Shielding +3 -2 +10 -2 +6 -2 Li C Ne - - - - - - - - - - - - -
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Chapter 5 58 Ionization Energy Ionization energy of an atom is the minimum amount of energy necessary to detach an electron form an atom that is in its ground state. First Ionization Energy Second Ionization Energy Third Ionization Energy Etcetera
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Chapter 5 59 IE Trends as we Move Down a Group (column)
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Chapter 5 60 IE Trends as we Move Across a Period (row)
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Chapter 5 61 IE Trends
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This note was uploaded on 03/08/2010 for the course CHEMISTRY 1310 taught by Professor Williams during the Spring '10 term at Georgia Tech.

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Ch 5.3 electron - Exceptions to Electron Configuration...

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