Ionic Bonding Explained Notes (O Level + IGCSE + AQA + Oxford + Edexcel)
Exam-Focused | Concise | 100% Syllabus Coverage | Updated for 2025–2027 Exams
🎉 Start with a Quick Mood Booster Song (1-Min Happy Break Before Studying!)
What is Ionic Bonding? (Exam-Ready Definition)
Ionic bonding is the electrostatic force of attraction between oppositely charged ions (cations and anions) formed by the complete transfer of valence electrons from a metal atom to a non-metal atom.
Key Points Asked in Every Exam (O Level 5070 | IGCSE 0620 | AQA | Edexcel)
- Occurs between metal + non-metal
- Involves electron transfer (not sharing)
- Forms giant ionic lattice structure
- High melting & boiling points
- Conduct electricity when molten or dissolved (free ions)
- Soluble in water, insoluble in organic solvents
Step-by-Step Formation of Ionic Bond (NaCl Example)
| Step | Description | Diagram Reference |
|---|---|---|
| 1 | Na (2,8,1) loses 1 electron → Na⁺ (2,8) | Dot & cross |
| 2 | Cl (2,8,7) gains 1 electron → Cl⁻ (2,8,8) | Dot & cross |
| 3 | Strong electrostatic attraction between Na⁺ and Cl⁻ | Ionic lattice |
Free Resources Linked (Maximum Internal Linking for SEO)
- → O Level Chemistry Formula Sheet PDF (Printable)
- → Chemistry Cheat Sheet – Cations, Anions, Gases & Ion Tests (Free PDF)
- → Learn Periodic Table Groups 1–8 in One Song (Memory Hack)
- → IGCSE 0620 Solved Past Papers (Topic-wise)
- → O Level 5070 Solved Past Papers 2023–2025
Watch Ionic Bonding Questions Solved Live
IGCSE March 2022 Paper 62 – Ionic Bonding Question Solved by Prof. Faisal
O Level Summer 2023 Paper 42 – Ionic Bonding + Lattice Solved
Complete Syllabus Crash Course – 10% OFF (Limited Time)
Enroll Now – 10% OFF Complete O Level + IGCSE Chemistry
Meet Your Teacher – Prof. Faisal Janjua (The Chemistry Guru)
17+ years experience | 9000+ students taught | 200+ World Distinctions & Top in World awards | Official Cambridge trainer
“Ionic bonding is the easiest 4–6 marks in paper if you remember electron transfer and properties.” – Prof. Faisal
Student Testimonials
"Sir Faisal’s ionic bonding explanation + cheat sheet helped me score full marks in Paper 6!" – Ayesha K. (A* IGCSE 2024)
"The solved past papers videos are gold. Every ionic bonding question pattern is covered." – Ahmed R. (A* O Level 2025)
Download Free Ionic Formula + Formula Sheet PDF
Join Crash Course – 10% OFF Now
Book Live 1-to-1 Class with Prof. Faisal















