L40 - Lecture 40 Colorful Cations Colorful Cations:...

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Unformatted text preview: Lecture 40 Colorful Cations Colorful Cations: Transition Metals Key Idea: The colors of transition metal cations can be described in terms of energy differences between d orbitals. Electron Configuration Which electron configuration is Which electron configuration is correct for vanadium, V (Z=23)? correct for vanadium, V (Z=23)? A. A. [Ar Ar ] 3d ] 3d 5 5 4s 4s 2 B. B. [Ar Ar ] 3d ] 3d 3 3 4s 4s 2 C. C. [Ar Ar ] 3d ] 3d 5 D. D. [Ar Ar ] 4s ] 4s 2 3d 3d 5 E. E. None of the above None of the above Transition Metal Cations Zn Zn 2+ 2+ is diamagnetic (not attracted to a magnet). is diamagnetic (not attracted to a magnet). Which electron configuration is consistent with Which electron configuration is consistent with this observation? this observation? A. A. [Ar Ar ] 3d ] 3d 10 10 B. B. [Ar Ar ] 3d ] 3d 8 8 4s 4s 2 C. C. [Ar Ar ] 3d ] 3d 9 9 4s 4s 1 Vanadium (II) chloride Vanadium (II) chloride VCl VCl 2 Vanadium (III) chloride Vanadium (III) chloride VCl VCl 3 Vanadium (IV) chloride Vanadium (IV) chloride VCl VCl 4 Vanadium (V) Vanadium (V) oxytrichloride oxytrichloride VOCl VOCl 3 Do you think it is possible to make VOCl...
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This note was uploaded on 04/03/2008 for the course CHEM 1A taught by Professor Nitsche during the Fall '08 term at University of California, Berkeley.

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L40 - Lecture 40 Colorful Cations Colorful Cations:...

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