Module 5 - Keywords

Question 1

Transition metal/element

Answer 1

A d block element that forms at least one ion with an incomplete d sub shell

Question 2

Complex ion

Answer 2

A metal ion bonded to one or more ligands by coordinate bonds (dative covalent bonds)

Question 3

Ligand

Answer 3

A molecule/ion that can donate a pair of electrons with the transition metal to form a coordinate bond

Question 4

Stereoisomer

Answer 4

Species with the same structural formula but a different arrangement of atoms in space

Question 5

Coordination number

Answer 5

The total number of coordinate bonds formed in the complex

Question 6

d block element

Answer 6

An element with its highest energy electron in a d orbital

Question 7

Bidentate ligand

Answer 7

An atom/group of atoms which forms 2 coordinate (dative covalent) bonds to a central metal ion or metal

Question 8

Six-fold coordination

Answer 8

A complex which forms an octahedral shape with a coordination number of 6

Question 9

Cisplatin

Answer 9

A square planar complex Pt(NH3)2Cl2 which a cis isomerism - used in treatment of cancers as it attaches to DNA preventing replication

Question 10

Optical isomers

Answer 10

Isomers with the same structural formula which form non-superimposable mirror images to a chiral centre

Question 11

Chiral centre

Answer 11

A carbon atom which has 4 different atoms or groups around it

Question 12

Haemoglobin

Answer 12

The iron centred complex in blood which is used in the transport of oxygen