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AQA A Level Chemistry

Ionic
Bonding

Ionic bonding in AQA 3.1.3 focuses on electrostatic attraction between oppositely charged ions in a lattice, the prediction of ion charges and the construction of formulae for ionic compounds. These pages also connect ionic bonding to lattice structure and the physical properties of ionic substances.

Exam Paper
Paper 1
7405/1
Specification Points
3.1.3.1 & 3.1.3.4
Ionic bonding and properties
Topic Parts
3 parts
Revision notes available
Exam Board
AQA
AQA 7405

Revision Notes

Work through each Ionic Bonding page in a structured AQA sequence.

Opposite charges
Ionic
Bonding
1
Available

Nature of Ionic Bonding

Electrostatic attraction between oppositely charged ions in a lattice, ion charge prediction and ionic formulae.

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Charge distortion
Ion
Polarisation
2
Available

Polarisation of Ions

How ionic charge density can distort electron clouds and affect the bonding model used to describe ionic compounds.

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Ionic lattice
Ionic
Properties
3
Available

Physical Properties of Ionic Compounds

Melting point, electrical conductivity and how ionic lattice structure controls the physical properties of ionic compounds.

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Formulae
Ions and
Formulae
4
Available

Ions and Ionic Formulae

Predicting ion charges from the Periodic Table, the sulfate, hydroxide, nitrate, carbonate and ammonium ions, and constructing ionic formulae (3.1.3.1).

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Specification Coverage

Ionic Bonding – AQA A Level Chemistry

The following AQA specification points outline the ionic bonding content covered across these pages.

3.1.3.1 Ionic bonding

3.1.3.1
Ionic bonding involves electrostatic attraction between oppositely charged ions in a lattice.
3.1.3.1
The formulas of compound ions, eg sulfate, hydroxide, nitrate, carbonate and ammonium.
Skills
Students should be able to:
1
predict the charge on a simple ion using the position of the element in the Periodic Table
2
construct formulas for ionic compounds.

3.1.3.4 Bonding and physical properties

3.1.3.4
The four types of crystal structure:
– ionic
– metallic
– macromolecular (giant covalent)
– molecular.
3.1.3.4
The structures of the following crystals as examples of these four types of crystal structure:
– diamond
– graphite
– ice
– iodine
– magnesium
– sodium chloride.
Skills
Students should be able to:
1
relate the melting point and conductivity of materials to the type of structure and the bonding present
2
explain the energy changes associated with changes of state
3
draw diagrams to represent these structures involving specified numbers of particles.
Specification Coverage

Ionic Bonding – AQA A Level Chemistry

The following AQA specification points outline the ionic bonding content covered across these pages.

3.1.3.1 Ionic bonding

3.1.3.1
Ionic bonding involves electrostatic attraction between oppositely charged ions in a lattice.
3.1.3.1
The formulas of compound ions, eg sulfate, hydroxide, nitrate, carbonate and ammonium.
Skills
Students should be able to:
1
predict the charge on a simple ion using the position of the element in the Periodic Table
2
construct formulas for ionic compounds.

3.1.3.4 Bonding and physical properties

3.1.3.4
The four types of crystal structure:
– ionic
– metallic
– macromolecular (giant covalent)
– molecular.
3.1.3.4
The structures of the following crystals as examples of these four types of crystal structure:
– diamond
– graphite
– ice
– iodine
– magnesium
– sodium chloride.
Skills
Students should be able to:
1
relate the melting point and conductivity of materials to the type of structure and the bonding present
2
explain the energy changes associated with changes of state
3
draw diagrams to represent these structures involving specified numbers of particles.