Difference between revisions of "Delocalised Electrons"
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| + | :[https://www.amazon.co.uk/gp/product/1782945679/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945679&linkCode=as2&tag=nrjc-21&linkId=a2db42f7b4bdf10cafaafa3bb9120940 ''Delocalised electrons, pages 21, 24, Gateway GCSE Chemistry; The Revision Guide, CGP, OCR ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/0198359829/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359829&linkCode=as2&tag=nrjc-21&linkId=90e8d7b4f039d53035238fa0320fe00b ''Delocalised electrons, pages 66-67, Gateway GCSE Chemistry, Oxford, OCR ''] | ||
| + | :[https://www.amazon.co.uk/gp/product/1782945695/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945695&linkCode=as2&tag=nrjc-21&linkId=ceafcc80bcad6b6754ee97a0c7ceea53 ''Delocalised electrons, pages 94, 96, Gateway GCSE Combined Science; The Revision Guide, CGP, OCR ''] | ||
Latest revision as of 14:35, 4 December 2019
Contents
Key Stage 3
Meaning
Free electrons are electrons which can move from one atom to another.
About Free Electrons
- Electrons are normally bound to a single atom. Free electrons are able to move from one atom to the next.
- Materials with free electrons can have an electrical current when a potential difference is applied.
Key Stage 4
Meaning
Delocalised electrons are electrons which can move from one atom to another.
About Free Delocalised
- Electrons are normally bound to a single atom. Delocalised electrons are able to move from one atom to the next.
- Materials with delocalised electrons can have an electrical current when a potential difference is applied.
- A metallic bond is held together by the delocalised electrons which are attracted to the positive metal ions.
References
AQA
- Delocalised electrons, pages 33-35, GCSE Chemistry; The Revision Guide, CGP, AQA
- Delocalised electrons, pages 49-51, 53, GCSE Chemistry; Third Edition, Oxford University Press, AQA
- Delocalised electrons, pages 87, 90, GCSE Combined Science Trilogy; Chemistry, CGP, AQA
- Delocalised electrons, pages 89, 92, GCSE Chemistry, CGP, AQA
Edexcel
- Delocalised electrons, pages 24, 25, GCSE Chemistry; The Revision Guide, CGP, Edexcel
- Delocalised electrons, pages 63-65, GCSE Chemistry, CGP, Edexcel