IUB CHEM-C 118 - 10-31 chapter 22 (16 pages)

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10-31 chapter 22



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10-31 chapter 22

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Pages:
16
School:
Indiana University, Bloomington
Course:
Chem-C 118 - Principles of Chemistry and Biochemistry Ii

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22 Coordination Chemistry 22 1 Properties of the Transition Elements 22 2 Iron and Steel The Use of Pyrometallurgy 22 3 Copper A Coinage Metal 22 4 Silver and Gold The Other Coinage Metals 22 5 Chromium 22 6 Coordinate Covalent Bonds 22 7 Crystal Field Theory Friday Friday October October 31 31 2014 2014 Read Read Section Section 22 1 22 1 for for Friday Friday Sections Sections 22 2 22 2 22 3 22 3 and and 22 4 22 4 Monday Monday End End of of Chapter Chapter 22 22 Problems Problems 8 8 14 14 16 16 18 18 20 20 21 21 22 22 26 26 28 28 30 30 32 32 34 34 36 36 38 38 40 40 42 42 44 44 46 46 48 48 50 50 52 52 54 54 56 56 58 58 60 60 62 62 63 63 65 65 67 67 73 73 75 75 77 77 78 78 79 79 83 83 85 85 91 91 Properties of Transition Elements Similar to main group metals conduct ductile malleable Differences Elemental forms are silvery white or bluish except Au and Cu Overall higher m p and b p W tungston called wolfren 3410 C Higher densities Os 22 6 g mL Ir 22 7 g mL Properties of Transition Elements Many form brightly colored compounds and complex ions Co NO3 2 K2Cr2O7 K2CrO4 NiCl2 CuSO4 KMnO4 Have multiple common oxidation states Some are paramagnetic unpaired electrons A few are ferromagnetic a bunch of unpaired electrons and line them up magnet on fridge Electron Configurations Sc Ti V Cr Mn Fe Co Ni Cu Zn 3d1 4s2 3d2 4s2 3d3 4s2 3d5 4s1 3d5 4s2 3d6 4s2 3d7 4s2 3d8 4s2 3d10 4s1 3d10 4s2 Y Zr Nb Mo Tc Ru Rh Pd Ag Cd 4d1 5s2 4d2 5s2 4d3 5s2 4d5 5s1 4d5 5s2 4d6 5s2 4d7 5s2 4d85s2 4d10 5s1 4d10 5s2 La Hf Ta W Re Os Ir Pt 5d1 6s2 Au Hg 4f14 5d2 6s2 4f14 5d3 6s2 4f14 5d5 6s1 4f14 5d5 6s2 4f14 5d6 6s2 4f14 5d7 6s2 4f14 5d8 6s2 4f14 5d10 6s1 4f14 5d10 6s2 Lanthanides intervene 4f subshell Non standard configuration is more stable filled and filled d sublevels are favored Electron Configurations Sc 3d 4s 4p unpaired e1 Ti 2 V 3 Cr 6 Mn 5 Fe 4 Co 3 Ni 2 Cu 1 Zn 0 Electron Configurations Ion formation Fe Fe2 Fe3 V V2 V4 Measured moments confirm that ns are lost first Practicing



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