Edexcel A Level Chemistry:复习笔记6.2.7 Cis-platin
Cis-platin Sometimes, complexes with four coordinate bonds may adopt a square planar geometry instead of a tetrahedral one Cyanide ions (CN-) are the most common ligands to adopt this geomet...
Edexcel A Level Chemistry:复习笔记6.2.6 Tetrahedral Complexes
Tetrahedral Complexes When there are four coordinate bonds the complexes often have a tetrahedral shape Complexes with four chloride ions most commonly adopt this geometry Chloride ligands a...
Edexcel A Level Chemistry:复习笔记6.2.5 Octahedral Complexes
Octahedral Complexes Octahedral complexes are formed when a central metal atom or ion forms six coordinate bonds This could be six coordinate bonds with six small, monodentate ligands Exampl...
Edexcel A Level Chemistry:复习笔记6.2.4 Ligands
Monodentate ligands Monodentate ligands can form only one dative bond to the central metal ion This is because they have a single lone pair of electrons to form a dative bond with the metal ...
Edexcel A Level Chemistry:复习笔记6.2.3 Coloured Ions
Coloured Ions Perception of colour Most transition metal compounds appear coloured. This is because they absorb energy corresponding to certain parts of the visible electromagnetic spectrum ...
Edexcel A Level Chemistry:复习笔记6.2.2 Transition Metal Complexes
Transition Metal Complexes Transition element ions can form complexes which consist of a central metal ion and ligands A ligand is a molecule or ion that forms a co-ordinate bond with a tran...
Edexcel A Level Chemistry:复习笔记6.2.1 Transition Metals
General Properties of Transition Metals Transition metals are elements with an incomplete d-subshell that can form at least one stable ion with an incomplete d-subshell This definition disti...
Edexcel A Level Chemistry:复习笔记6.1.9 Redox Titration Calculations
Redox Titration Calculations Redox Titrations In a titration, the concentration of a solution is determined by titrating with a solution of known concentration. In redox titrations, an oxidi...
Edexcel A Level Chemistry:复习笔记6.1.8 Fuel Cells
Fuel Cells A fuel cell is an electrochemical cell in which a fuel donates electrons at one electrode and oxygen gains electrons at the other electrode These cells are becoming more common in...
