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Summary Alevel Chemistry - Shapes of Ions and Complexed Ions - Haemoglobin Notes

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Alevel Chemistry - Shapes of Ions and Complexed Ions - Haemoglobin Notes

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Unit 3.2.5 - Transition metals








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A Level Chemistry
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Unit 3.2.5 - Transition metals
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Uploaded on
July 31, 2023
Number of pages
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Written in
2022/2023
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Summary

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  • alevel
  • chemistry
  • shapes of ions and complexed ions haemoglobin

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Shapes of Ions and Complexed Ions -
Haemoglobin
A ligand is an ion, atom or molecule that has at least one lone pair of electrons which it can
donate to form a coordinate bond.
The shape of a complexed ion is dependant on the size of the ligands and their coordination
number.
A complex is a central metal ion surrounded by coordinately bonded ligands.
Ligands that form one coordinate bond are called monodentate.
shape name bond number of coordinate
angles bonds
octahedral 90 6




tetrahedral 109.5 4




square 90 4
planar


linear 180 2


Monodentate Ligands (:NH3,:OH,:CN) Bidentate
Ligand (:NH2CH2CH2:NH2)
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