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Topic 13 - Further Periodicity (13.1 First-row d-block elements…
Topic 13 - Further Periodicity
13.1 First-row d-block elements
Electron configurations of first row d-block elements
Exceptions: Cr (Z = 24) and Cu (Z = 29)
Characteristics of transition elements
Gradual IE increase
Compounds are colored
Form complexes with ligands
Used as catalysts
Magnetic properties
Variable oxidation states
Variable oxidation states
Type B
Stable high oxidation states
Stable low oxidation states
Type C
Unstable high oxidation states
Stable low oxidation states
Type A
Stable high oxidation states
Unstable low oxidation states
Coloured compounds of transition metals and their ions
Coordinate bonding
Ligands
Monodentate ligands
Polydentate ligands
Bidentate ligands
(EDTA)4-
Complexes of transition metals
Bonding models of transition metal complexes
Pauling's electroneutrality principle
Coordination numbers
Catalysts
In cars
Green chemistry
Biological catalysts
Homogenous v. heterogeneous
Magnetic properties
Paramagnetic
Diamagnetic
13.2 Coloured complexes
Theories on complexes
Valence bond theory (VBT)
Crystal field theory (CFT)
Molecular orbital theory (MOT)
Ligand field theory (LFT)
Angular overlap model
Crystal field theory