Applied Science AQA/Bonding and Structure
Topic Title[edit | edit source]
Setting Applied context[edit | edit source]
Materials scientists are involved in the applications of existing materials to new contexts, and the developments of new materials such as graphene-based nanomaterials. They need a knowledge and an understanding of the structures of those materials and the type and strength of forces present.
| Syllabus Content | What you need to do |
|---|---|
| • formulas for common cations
• formulas for common anions (sulfate, carbonate, nitrate, hydroxide) • deducing formulas for ionic compounds • ionic bonding and ionic crystal lattices in terms of strong electrostatic forces of attraction • a covalent bond as a shared pair of electrons • multiple bonds, neutral molecules, non-conductors and weak intermolecular forces of attraction • metallic bonding |
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| • structures of:
• ionic crystal lattices typified by sodium chloride, magnesium oxide • metallic lattices typified by magnesium • covalent structures typified by iodine, methane, carbon dioxide • giant covalent structures (macromolecular), eg diamond, graphite, graphene, fullerene • predicting types of bonding for compounds given their typical properties and vice versa • typical properties based on the type of bonding, particles present and forces between particles |
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| • common physical properties of materials related to their structure and bonding, to include:
• electrical conductivity • melting point and boiling point • volatility • solubility in water • non-polar solvents • drawing diagrams to represent: • a named ionic lattice • a generalised metallic lattice • an alloy • giant covalent structures, including silicon, graphite, graphene. |
Exploration of key ideas (must be original text, not C&P) – level checked by AQA[edit | edit source]
In general, point students towards the approach to take, as opposed to just giving them information.
Concept 1[edit | edit source]
explanation 1
Concept 2[edit | edit source]
explanation 2
Concept 3[edit | edit source]
explanation 3
Concept 4[edit | edit source]
explanation 4
Study Task[edit | edit source]
Work to do to understand this topic e.g. research, analysis
Careers and Organisations[edit | edit source]
Carry out some research into these jobs in this area. (Feel free to add other jobs you find.)
| Research these roles: | What are the benefits of this role to society? | What organisations would employ someone in this role?
(Where would they work?) |
What would someone in this role have to do within the organisation? | What scientifically-related skills do they need to have?
What techniques do they need to have mastered? |
What experience is needed to undertake this role and its responsibilities within an organisation? | What other science personnel will they work with in their organisation. |
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| Job 1 | ||||||
| Job 2 |
Relevant practical/s[edit | edit source]
– relating to criteria skills
Quick questions[edit | edit source]
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quick questions
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Exam-style questions[edit | edit source]
– can we use old AQA qs… e.g. from more than 5 years ago? With Examiner comments
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Links[edit | edit source]
to other sections within this book
to good external websites (including AQA website, wikipedia, relevant applications / companies) - also considering links in spec
References / Bibliography[edit | edit source]
of recommended text books
including mapped refs to existing books