A9 Transition Metals

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Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

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Front (Question)

Define transition element

Back (Answer)

d-block elements that have an ion with an incomplete d-sub-shell

Front (Question)

Describe and explain why are Sc and Zn are not transition metals

Back (Answer)

Their stable ions of Sc3+ and Zn2+. don’t have incomplete d-sub-shells

Front (Question)

What are the two d-block meatals that arene’t actually transition elements

Back (Answer)

Sc and Zn

Front (Question)

What are the three propereties of all transition elements

Back (Answer)

• Can have more than one oxidation state for each element in it’s compounds • Form coloured ions • Have catalystic properties (e.g MnO2 catalyses decomposition of hydrogen peroxide)

Front (Question)

Example of transition metal catalysing reaction

Back (Answer)

MnO2 catalyses decomposition of hydrogen peroxide (H2O2 –? H2O + 1/2 O2)

Front (Question)

Define ligand

Back (Answer)

Forms one coordinate bond with a metal ion, as it donates one pair of electrons

Front (Question)

Define bidenate ligand

Back (Answer)

Forms two coordinate bonds with a metal ions, as it donates two pairs of electrons

Front (Question)

Define complex ion

Back (Answer)

A metal ion bonded to ligands that surround it

Front (Question)

Define ligand substitution

Back (Answer)

Replacement of one ligand with another ligand

#10

Front (Question)

Define cooridnation number

Back (Answer)

Number of coordinate bonds to a metal ion

#11

Front (Question)

Examples of monodentate ligands

Back (Answer)

H2O , Cl- , NH3

#12

Front (Question)

Example of bidentate ligands

Back (Answer)

NH2CH2CH2NH2

#13

Front (Question)

What complex ions have six-fold cooridnation with octahedral shape

Back (Answer)

Hexaaqua complexes

#14

Front (Question)

Coordination and shape of hexaaqua complexes

Back (Answer)

Six-fold cooridination with octahedral shape

#15

Front (Question)

What comples ions have four-fold coorindaiton with a teterahedral shape

Back (Answer)

Tetrachloro complexes

#16

Front (Question)

What cooridnation and shape of tetrachloro complexes

Back (Answer)

Four-fold coordination and tetrahedral shape

#17

Front (Question)

What complex ions have four-fold cooridnation with planar shape

Back (Answer)

Platin: Pt(NH3)2Cl2

#18

Front (Question)

What is the cooridination and shape of platin

Back (Answer)

Four-fold, with planar shape

#19

Front (Question)

How to tell cis-isomer of complex ion

Back (Answer)

Same molecule next to each other

#20

Front (Question)

How to tell trans-isomer from complex ion

Back (Answer)

Same molecule is not next to each other

#21

Front (Question)

Diagram of cis complex ion

Back (Answer)

#22

Front (Question)

Diagram of trans complex ion

Back (Answer)

#23

Front (Question)

How is cis-platin an anti-cancer drug

Back (Answer)

Binds to DNA, preventing cell division

#24

Front (Question)

Diagram of cis-platin

Back (Answer)