Exam 1 CHE 375 F10

Exam 1 CHE 375 F10 - CHE 375 Fall 10 Exam 1 Name: 1....

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CHE 375 Fall 10 Exam 1 Name: 1. Qualitatively draw the radial wavefunction of the 2s orbital. (5) 2. Qualitatively draw the radial probability function of the 3 p orbital. (10) 3. Explain why the 2s and 2p orbitals have different energies in multielectron systems. (10)
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4. Explain why the electron affinity of nitrogen is lower than that of carbon. (10) 5. Which valence electron experiences a higher effective nuclear charge? That in a carbon atom or that in a nitrogen atom? Explain. (10) 6. Is the ionization energy of the hydride anion larger or smaller than that of the hydrogen atom? Explain. (10)
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7. Consider the silicon atom. Predict whether this atom has a magnetic moment. Identify the individual factors that contribute to the absence or presence of a magnetic moment. (10) 8. Comment on the relative energies of the 2s and 2p electrons in carbon versus fluorine. Make comparisons within the individual atoms and between the two types of atoms. (15) 9. Which atom of the third period has an electronic ground state that is characterized by the electronic term symbol 2 P 1/2 ? Explain your choice. (10)
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10. Give the fundamental reasons why the system H
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Exam 1 CHE 375 F10 - CHE 375 Fall 10 Exam 1 Name: 1....

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