Ionic Bonding — GCSE Chemistry Revision
Revise Ionic Bonding for GCSE Chemistry. Step-by-step explanation, worked examples, common mistakes and exam-style practice aligned to AQA, Edexcel, OCR, WJEC, Eduqas, CCEA, Cambridge International (CIE), SQA, IB, AP.
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Go to Covalent BondingWhat is Ionic Bonding?
Ionic Bonding is best understood as electron transfer followed by electrostatic attraction. Students often remember the final diagram but cannot explain why the ions form or why the structure has a high melting point. The mark-winning route is: metal loses electrons, non-metal gains electrons, oppositely charged ions attract, and the giant ionic lattice needs lots of energy to break.
Board notes: AQA, Edexcel and OCR all cover the same Chemistry foundations here, but the style of practical setup, calculation wording, and emphasis on extended explanation can vary by paper.
Step-by-step explanationWorked example
For sodium chloride, start with electron transfer: sodium loses one electron to form Na+, chlorine gains one electron to form Cl-. Then explain the bond: the oppositely charged ions attract strongly in all directions, forming a giant ionic lattice. If the question asks about conductivity, state clearly that ions only move when molten or dissolved.
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Targeted practice plan
- 1Write the key particles, formula, or equation for Ionic Bonding, then apply it to one unfamiliar example.
- 2Do one method or calculation question and annotate every unit, state symbol, or balancing step before marking it.
- 3Check the answer for chemistry-specific precision: have you explained why the particles behave that way, not just named the trend?
Common mistakes
- 1Drawing electron transfer correctly but not naming the ions formed.
- 2Calling ionic bonding 'sharing electrons' instead of transfer.
- 3Explaining properties such as high melting point without linking them to the giant lattice and strong electrostatic forces.
Ionic Bonding exam questions
Exam-style questions for Ionic Bonding with mark-scheme style solutions and timing practice. Aligned to AQA, Edexcel, OCR, WJEC, Eduqas, CCEA, Cambridge International (CIE), SQA, IB, AP specifications.
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Step-by-step method
Step-by-step explanation
4 steps · Worked method for Ionic Bonding
Core concept
Ionic Bonding is best understood as electron transfer followed by electrostatic attraction. Students often remember the final diagram but cannot explain why the ions form or why the structure has a hi…
Frequently asked questions
How do I know whether a bond is ionic?
At GCSE level, ionic bonding usually forms between a metal and a non-metal when electrons are transferred.
Why do ionic compounds conduct when molten?
Because the ions are free to move and carry charge. In a solid lattice they are fixed in place.