CHEM171_F08_ProbSet_21 - CHEMISTRY 171: PROBLEM SET #2...

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CHEMISTRY 171: PROBLEM SET #2 (10/03/08) DUE: FRIDAY, October 10, 2008 1. How many angular and radial nodes does the atomic orbital to the right have? What type of atomic orbital is it? Explain how you arrived at your answer. 2. Briefly explain the special stability of the following electronic configuration: 3d 5 3. The second ionization energy of carbon and the first ionization energy of boron both involve the loss of the 2p electron from a [He]2s 2 p 1 configuration. However, IE 2 for carbon (24.4eV) is much higher than IE 1 for boron (8.3eV). Why? 4. Write the electronic configuration of K + and Cl - . Use Slater’s rules to find the effective nuclear charge felt by the outermost electron in these ions. Use this information to briefly explain the size difference of these two ions. 5. Calculate Z eff * for a 4p electron in bromine. A more accurate value for the 4p electron in Bromine is +9.03. Why might the use of Slater’s rules for this electron give a significantly different value?
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This note was uploaded on 01/29/2010 for the course CHEM 142725201 taught by Professor Kaner during the Fall '08 term at UCLA.

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