This assignment has information where it will help you on your assignment this assignment should be used as ideal purposes only as different schools will slightly have different criteria requirements.
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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