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11 Cards in this Set
- Front
- Back
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Transition Metal |
A d-block element that forms an ion with an incomplete d sub-shell |
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Complex ion |
A transition metal ion bonded to one or more ligands by coordinate bonds |
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Ligand |
A molecule or ion that can donate a pair of electrons with the transition metal ion to form a coordinate bond |
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Coordination number |
The total number of coordinate bonds formed between a central metal ion and its ligands |
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Stereoisomers |
Species with the same structural formula but with a different arrangement of the atoms in space |
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Stability Constant |
Equilibrium constant for an equilibrium existing between a transition metal ion surrounded by water ligands and the complex formed when the same ion has undergone a ligand substitution |
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Why are transition metals good as catalysts |
1. Provide a surface for reactants to adsorb onto and hold onto them until the reaction is complete before the products are desorbed 2. Transition metals have the ability to change oxidation states. They can bind to reactants forming intermediates as part of a chemical pathway with a lower activation energy |
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Why are transition metals good as catalysts |
1. Provide a surface for reactants to adsorb onto and hold onto them until the reaction is complete before the products are desorbed 2. Transition metals have the ability to change oxidation states. They can bind to reactants forming intermediates as part of a chemical pathway with a lower activation energy |
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Co2+ reacting with NaOH |
Pink solution -> Blue precipitate turning beige in air Co2+ + 2OH- ---> Co(OH)2 |
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Fe2+ reacting with NaOH |
Pale green solution -> green precipitate turning rusty brown upon standing in air Fe2+ -> 2OH- ---> Fe(OH)2 |
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Fe3+ reacting with NaOH |
Pale yellow solution -> rusty brown precipitate Fe3+ + 3OH- ---> Fe(OH)3 |
