Combined Science GCSE
Trends in reactivity down a group
What Trends in reactivity down a group means in Combined Science GCSE, as defined for AQA.
Definition of Trends in reactivity down a group
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Reference: AQA
Reactivity decreases down the group because the outer shell is further from the nucleus and shielded by more inner shells, so the attraction for an incoming electron is weaker.
Topics that use Trends in reactivity down a group
- Group 7 (AQA GCSE)
Related terms
- Covalent bonding
- Electron transfer and sharing
- Ionic bonding
- Patterns and trends in the periodic table
- Physical properties of the halogens
- Reactivity and electronic structure
- Using data to make and justify predictions
- Covalent bonding in diatomic molecules
Using Trends in reactivity down a group in the exam
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