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BTEC APPLIED SCIENCE Unit 13: Learning Aim C (Properties and reactions of transition metal complexes) $3.86
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BTEC APPLIED SCIENCE Unit 13: Learning Aim C (Properties and reactions of transition metal complexes)

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  • June 21, 2022
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  • 2021/2022
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Mohammed Salam Unit 13: LA C




Properties and reactions of transition metal complexes



What is a transition metal?

All transition metals are in the D – block element section which means that they have at least one
ion with a partially filled D sub shell for example, copper is a transition metal because it is a D – block
element where it has one ion with a partially filled D sub shell.



Vanadium (transition metal) Mercury (not a transition metal)
Solid liquid
[Ar] 4s2 3d3 [Xe] 4f14 5d10 6s2
Forms at least 1 ion with partially filled D sub Forms 1 ion with full D sub shell
shell
Yellow flame Red flame


Ligand: A species that possesses a single pair of electrons that it can donate to a central metal ion in
order to form a coordinate or dative bond in a complex ion for example water is a ligand.

Complex: A complex is made up of a metal ion in the centre surrounded by ligands that have formed
coordinate bonds with the metal for example hexaquacopper is a complex ion.

Dative bond: A coordinate covalent bond is another name for a dative bond. It is a type of chemical
bond in which one atom contributes a shared pair of electrons to the bond's formation.



Octahedral complex:




1

, Mohammed Salam Unit 13: LA C


Tetrahedral complex:




2

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