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Properties of Period 3 elements and their oxides (A-level only)
This A-level-only topic links Period 3 oxide structure to acid-base properties.
4
Objectives
10
Flashcards
10
Questions
88 min
Study time
AqaA LevelChemistryInorganic chemistry
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Start revising Properties of Period 3 elements and their oxides (A-level only)
Syllabus checklist
What you need to know
4 objective pages available
Period 3 oxides (A-level only)4 objectives
- Describe the bonding and structure of Period 3 oxides.
- Explain melting point trends of Period 3 oxides.
- Explain reactions of Period 3 oxides with water.
- Explain acid-base behaviour of Period 3 oxides.
Key terms
AmphotericGiant covalent structureIonic bondingAcidic oxideBasic oxide
Exam tips
- Use clear diagrams for structures: When describing structures, include clear diagrams to illustrate bonding and geometry.
- Use diagrams to illustrate structures: When explaining trends in melting points, use diagrams to show the structures of the oxides.
Common mistakes
- Confusing acidic and basic oxides: Remember that oxides of metals (like Na2O and MgO) are generally basic, while non-metal oxides (like SO2 and P2O5) are acidic.
- Confusing melting points of oxides: Remember that ionic oxides generally have higher melting points than covalent oxides due to the strength of ionic bonds.
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