Exam 3-2.4 - different atoms overlap B Molecular orbital theory describes bonding orbitals(electrons between the two nuclei and antibonding

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Sample Exam 3-2 Dr. V. Williamson © Vickie M. Williamson 2007, All Rights Reserved 11. The approximate F—Xe—F bond angle between 2 adjacent F in XeF 4 is A. 180° B. 120° C. 109° D. 90° E. 160° 12. What is the formal charge on the I atom in the IO 3 - ion? A. -3 B. +4 C. 0 D. -l E. +2 13. Which one of the following is the electron configuration (in order of increasing energy) f or the Co 2+ ion? A. 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 9 B. 1s 2 2s 2 2p 6 3s 2 3p 6 4s 0 3d 7 C. 1s 2 2s 2 2p 6 3s 2 3p 6 4s 1 3d 6 D. 1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 5 E. 1s 2 2s 2 2p 6 3s 2 3p 6 4s 0 3d 5 14. Which of the following is INCORRECT? A. Valence Bond theory assumes that covalent bonds are formed when atomic orbitals on
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Unformatted text preview: different atoms overlap. B. Molecular orbital theory describes bonding orbitals (electrons between the two nuclei) and antibonding orbitals (electrons on the outside of each nuclei) C. VSEPR theory describes how the geometry of molecules are formed when valence electron pairs are arranged around the central atom with maximum separation D. Molecular orbital theory describes how molecular orbitals are formed from atomic orbitals E. Molecular orbital theory is used to explain molecular geometry by hybridization of orbitals....
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This note was uploaded on 02/18/2012 for the course CHEM 101 taught by Professor Williamson during the Fall '08 term at Texas A&M.

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