Chemistry GCSE
Electron gain
What Electron gain means in Chemistry GCSE, as defined for AQA.
Definition of Electron gain
Check what you remember
Read the wording for your board, then hide it and explain Electron gain in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
Halogens react by gaining one electron to form a 1⁻ ion in reactions with metals and in displacement reactions.
Topics that use Electron gain
- Group 7 (AQA GCSE)
Related terms
- Diatomic molecules
- Displacement reactions
- Group 7 reactivity
- Group 7 trends
- Halide salts
- Halogens
- Intermolecular forces and physical states
- Ionic versus covalent bonding
Using Electron gain in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
Practise Chemistry questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
Start free
All Chemistry GCSE termsA week of Premium from your first lesson · Then the free plan continues · No card, no charge