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Transition Elements
F325 A2 Chemistry Revision…read more

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A transition element has at least one ion with
an incomplete d sub-shell.
Scandium and Zinc are not transition metals.…read more

Slide 3

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Glossary of Terms for Transition
Ligand ­ Atoms or ions, which possess lone pairs of electrons.
(from co-ordinate bonds to the central ion.) (Donate a lone pair
of electrons into vacant orbitals on the central species.) e.g. H2O,
NH3, Cl-, OH-.
Complex ion ­ Formed when species called ligands form co-
ordinate bonds to a central species such as a transition metal
Co-ordination No ­ The number of co-ordinate bonds formed to
the central ion.
Bidentate Ligand ­ Form two co-ordinate bonds
Geometric Isomerism ­ A chemical species with the same type
and quantity of atoms as another species, yet having a different
geometric structure.
Optical Isomerism ­ Same molecular formula, rotating polarised
light because of one or more chiral centres.…read more

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Electron Configurations
Ti ­ 1s22s22p63s23p64s23d2
Ti+ - [1s22s22p63s23p6c]+
Cr ­ [Ar]4s13d5
Cr+ - [[Ar]4s03d5]+…read more

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Properties of Transition Metals
They are good catalysts
They form coloured ions
They exist in different oxidation states…read more

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There are 3 Main Reactions of transition
> Precipitation
> Ligand Substitution
> Redox Reaction…read more

Slide 7

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