Exercise 1 — IGCSE 0653 Oct/Nov 2023 Paper 43 Q5
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1.2 (%)
Cambridge IGCSE·Combined Sciences 0653·Chemistry
Chemical Bonding
Key knowledge — Chemical Bonding
Key facts & rules
- Ionic bonding: metal loses electrons (→ cation) + non-metal gains electrons (→ anion) → electrostatic attraction.
- Ionic compounds: high melting point, conduct electricity when dissolved or molten, form crystals.
- Covalent bonding: non-metals share pairs of electrons.
- Simple molecular: low melting/boiling point, do NOT conduct electricity (e.g. H₂O, CO₂, CH₄).
- Giant covalent: very high melting point, hard, do NOT conduct electricity (except graphite). E.g. diamond, SiO₂.
- Metallic bonding: lattice of positive ions surrounded by a 'sea' of delocalised electrons.
- Metals: conduct electricity/heat, malleable, ductile — because of delocalised electrons.
- Hydrogen bonds: strong intermolecular forces in water and between N−H/O−H groups.
- Van der Waals forces: weak, temporary dipole attractions — exist between ALL molecules.
IGCSE Chemistry — Chemical Bonding
10 Cambridge IGCSE 0653 Combined Sciences past paper questions on chemical bonding, across Theory, Multiple Choice and Alternative to Practical.
About Chemical Bonding on IGCSE 0653
Ionic bonding involves electron transfer between metals and non-metals; covalent bonding involves electron sharing between non-metals; metallic bonding holds metal atoms together. The type of bonding determines the structure and properties of the substance.
What's covered:
- Ionic bonding and giant ionic structures
- Covalent bonding: simple molecules and giant covalent structures
- Dot-and-cross diagrams
- Metallic bonding
- Physical properties linked to structure
- Intermolecular forces: van der Waals, hydrogen bonds
Theory
Chemical Bonding — Extended2 · Paper 4
Exercise 2 — IGCSE 0653 Oct/Nov 2023 Paper 41 Q8
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the values, only add to 98.8% / do not add up to 100%
Multiple choice
Chemical Bonding — Core MCQ1 · Paper 1
Question 1 — IGCSE 0653 May/Jun 2023 Paper 13 Q16
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Correct answer: B
Chemical Bonding — Extended MCQ7 · Paper 2
Question 1 — IGCSE 0653 May/Jun 2023 Paper 23 Q14
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Correct answer: C
Question 2 — IGCSE 0653 May/Jun 2023 Paper 23 Q15
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Correct answer: C
Question 3 — IGCSE 0653 May/Jun 2025 Paper 22 Q14
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Correct answer: C
Question 4 — IGCSE 0653 May/Jun 2025 Paper 22 Q15
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Correct answer: C
Question 5 — IGCSE 0653 May/Jun 2025 Paper 23 Q22
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Correct answer: B
Question 6 — IGCSE 0653 May/Jun 2025 Paper 23 Q23
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Correct answer: B
Question 7 — IGCSE 0653 May/Jun 2025 Paper 23 Q24
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Correct answer: D
All Chemical Bonding questions in this collection
| Type | Level | Paper | Session | Q# | Marks | Answer / key |
|---|---|---|---|---|---|---|
| MCQ | Core | Paper 13 | May/Jun 2023 | Q16 | 1 mark | B |
| MCQ | Extended | Paper 23 | May/Jun 2023 | Q14 | 1 mark | C |
| MCQ | Extended | Paper 23 | May/Jun 2023 | Q15 | 1 mark | C |
| MCQ | Extended | Paper 22 | May/Jun 2025 | Q14 | 1 mark | C |
| MCQ | Extended | Paper 22 | May/Jun 2025 | Q15 | 1 mark | C |
| MCQ | Extended | Paper 23 | May/Jun 2025 | Q22 | 1 mark | B |
| MCQ | Extended | Paper 23 | May/Jun 2025 | Q23 | 1 mark | B |
| MCQ | Extended | Paper 23 | May/Jun 2025 | Q24 | 1 mark | D |
| Theory | Extended | Paper 43 | Oct/Nov 2023 | Q5 | 9 marks | 1.2 (%) |
| Theory | Extended | Paper 41 | Oct/Nov 2023 | Q8 | 9 marks | the values, only add to 98.8% / do not add up to 100% |