Lecture 9

Lecture 9 - CHM 11500-M01 and M02 Dr. John Polles Lectures:...

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CHM 11500-M01 and M02 Dr. John Polles Lectures: M, F at 11:30 and 2:30 Lecture 9 Reading was: KTT: Sections 7.4 – 7.6 Lecture 10: Sections 8.1, 8.2, 13.3
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1 2 Electron Configurations Electrons are added to the atom in the order of the energy of the orbitals. The lowest energy orbital fills first. Any orbital can hold a maximum of two electrons, but only if they have different spins. For a set of p, d, or f orbitals each orbital holds one electron before any get two
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1 3 Periodic Table Configuration n = 1 n = 2 n = 3 l = 0 = s l = 2 = d l = 1 = p n = 4 n = 5 n = 6 n = 7 *
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1 4 The Periodic Table and The Order of Orbital Filling There will be occasional anomalies in these periods, but if we use the expected pattern we can still use the predicted configurations to explain the chemistry of the atoms.
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1 5 What is the electron configuration of lead, element # 82? The Periodic Table and The Order of Orbital Filling 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 10 4p 6 5s 2 4d 10 5p 6 6s 2 4f 14 5d 10 6p 2
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Lecture 9 - CHM 11500-M01 and M02 Dr. John Polles Lectures:...

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