This key facts covers Key Facts to Memorise within Ionic Bonding for GCSE Chemistry. Revise Ionic Bonding in Bonding & Structure for GCSE Chemistry with 27 exam-style questions and 20 flashcards. This is a high-frequency topic, so it is worth revising until the explanation feels precise and repeatable. It is section 7 of 13 in this topic. Use this key facts to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 7 of 13
Practice
27 questions
Recall
20 flashcards
📌 Key Facts to Memorise
- Ionic bonding = electrostatic attraction between oppositely charged ions
- Occurs between metals and non-metals
- Electrons are TRANSFERRED — NOT shared (that's covalent!)
- Metals LOSE electrons → form POSITIVE ions (cations)
- Non-metals GAIN electrons → form NEGATIVE ions (anions)
- Group number = charge for Groups 1, 2, 6, 7 (with appropriate sign)
- Both ions achieve full outer shells — like noble gas configurations
- The bond is the attraction — there's no physical "stick" between ions