Chapter+23 - Chapter 23 Transition Metals Dr. Shamindri M....

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Click to edit Master subtitle style 6/6/11 Dr. Shamindri M. Arachchige arachsm@vt.edu Davidson 11 1 Office Hours: Location: Davidson 11 Monday 1:45-5:00 PM Wednesday 1:45-4:15 PM Other hours by appointment 11 Chapter 23 Transition Metals
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6/6/11 Chapter 23 Transition Metals 22
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6/6/11 Chapter 23 Transition Metals C h a ra c te r is t ic s o f T n s it io n M e ta ls : : C h a c r t s o f T n s n M e : : 33
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6/6/11 Chapter 23 Transition Metals Oxidation numbers 44
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6/6/11 Chapter 23 Transition Metals 55
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6/6/11 Chapter 23 Transition Metals Size trend (Atomic radii) : Size decreases →→→→→→→ Size increases →→→→→→→ Size decreases from Group 3 to 8 because: Size increases from Group 9 to 12 because: 66
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6/6/11 Chapter 23 Transition Metals Size trends in Rows 5 and 6: Lanthanide contraction : Density values: 77
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6/6/11 Chapter 23 Transition Metals Vertical trends in key properties within the transition elements. 88
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6/6/11 Chapter 23 Transition Metals Magnetism : Most transition metals have unpaired electrons (paramagnetic). Complex Ions Complex ions: Transition metals commonly form complex ions: an ion in which a metal is bonded to ions or molecules called ligands. Cr 3+ + 6NH 3 Cr(NH 3 ) 6 3+ Co 3+ + 6Cl - CoCl 6 3- Coordination compounds: a compound formed between a complex ion and a counter ions(s) needed to give a neutral charge.
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This note was uploaded on 06/06/2011 for the course CHEM 1036 taught by Professor Amateis during the Spring '08 term at Virginia Tech.

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Chapter+23 - Chapter 23 Transition Metals Dr. Shamindri M....

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