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Elements and Compounds Structures
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Elements and Compounds Structures
🎯 WALT: Understand how element and compound structures affect their properties
Success Criteria:
- I can identify simple and giant structures
- I can explain how structure affects physical properties
- I can distinguish between different types of bonding
📚 Multiple Choice Questions
1. Which of the following best describes a giant covalent structure?
Small molecules held together by weak forces
A continuous network of atoms joined by covalent bonds
Individual atoms that do not bond
Molecules that exist only in liquid form
2. Diamond has a very high melting point because it has:
Simple molecular structure
Giant covalent structure
Giant ionic structure
Metallic structure
3. Water (H₂O) has a relatively low boiling point of 100°C because it has:
Giant covalent structure
Simple molecular structure
Giant ionic structure
Metallic structure
4. Which property would you expect from a substance with giant ionic structure?
Low melting point and conducts electricity when solid
High melting point and conducts electricity when molten
Low melting point and never conducts electricity
High melting point but never conducts electricity
5. Carbon dioxide (CO₂) is a gas at room temperature because:
It has strong covalent bonds in a giant structure
It has weak forces between simple molecules
It has ionic bonds that easily break
It has metallic bonding
🌟 Extension Activity
6. Advanced Challenge: Explain why graphite can conduct electricity but diamond cannot, even though both are made of carbon atoms.
Differentiation Support:
- Visual learners: Draw simple diagrams to help answer question 6
- Dyslexia-friendly: Use the word bank: electrons, layers, delocalised, network
- Additional support: Think about how the atoms are arranged differently in each structure
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