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(About Covalent Bonds)
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| style="height:20px; width:250px; text-align:center;" |Each [[Oxygen]] shares two of its [[electron]]s with the [[Carbon]] [[atom]] while the [[Carbon]] [[atom]] shares two [[electron]]s with each [[Oxygen]] [[atom]].
 
| style="height:20px; width:250px; text-align:center;" |Each [[Oxygen]] shares two of its [[electron]]s with the [[Carbon]] [[atom]] while the [[Carbon]] [[atom]] shares two [[electron]]s with each [[Oxygen]] [[atom]].
 
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===References===
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====AQA====
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:[https://www.amazon.co.uk/gp/product/0008158762/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158762&linkCode=as2&tag=nrjc-21&linkId=a0fffa35b3ea49a63404f6704e0df7cc ''Covalent bond, pages 57-9, 62-3, 72-5, GCSE Chemistry; Student Book, Collins, AQA '']
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:[https://www.amazon.co.uk/gp/product/1782945598/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945598&linkCode=as2&tag=nrjc-21&linkId=ad276ad49df77ab4b40ab4fd0fe09812 ''Covalent bonds, page 116, GCSE Combined Science; The Revision Guide, CGP, AQA '']
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:[https://www.amazon.co.uk/gp/product/1782945571/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945571&linkCode=as2&tag=nrjc-21&linkId=9e29fad914244909903e5e93f8a01d95 ''Covalent bonds, page 31, GCSE Chemistry; The Revision Guide, CGP, AQA '']
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:[https://www.amazon.co.uk/gp/product/1471851354/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851354&linkCode=as2&tag=nrjc-21&linkId=9012a0d354024419214fb3ad5ac44ba0 ''Covalent bonds, pages 154, 156-7, 163, GCSE Combined Science Trilogy 1, Hodder, AQA '']
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:[https://www.amazon.co.uk/gp/product/178294639X/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=178294639X&linkCode=as2&tag=nrjc-21&linkId=51599bb45a2bfaf7c1b6a978b2ca2616 ''Covalent bonds, pages 29, 78-88, GCSE Combined Science Trilogy; Chemistry, CGP, AQA '']
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:[https://www.amazon.co.uk/gp/product/1782945962/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945962&linkCode=as2&tag=nrjc-21&linkId=476bb5c8d1dfb5c08ac81b6d4d1c98d8 ''Covalent bonds, pages 29, 80-90, GCSE Chemistry, CGP, AQA '']
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:[https://www.amazon.co.uk/gp/product/0198359381/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359381&linkCode=as2&tag=nrjc-21&linkId=47c8d1ae58d8b3a5e2094cd447154558 ''Covalent bonds, pages 38, 44-51, 149, 224-225, GCSE Chemistry; Third Edition, Oxford University Press, AQA '']
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:[https://www.amazon.co.uk/gp/product/1471851346/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851346&linkCode=as2&tag=nrjc-21&linkId=3ac654f4b0da781c49c855a1af4c92ea ''Covalent bonds, pages 41-2, 47-8, GCSE Chemistry, Hodder, AQA '']
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:[https://www.amazon.co.uk/gp/product/1471851346/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851346&linkCode=as2&tag=nrjc-21&linkId=3ac654f4b0da781c49c855a1af4c92ea ''Covalent bonds; giant covalent substances, page 44, GCSE Chemistry, Hodder, AQA '']
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:[https://www.amazon.co.uk/gp/product/1471851354/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851354&linkCode=as2&tag=nrjc-21&linkId=9012a0d354024419214fb3ad5ac44ba0 ''Covalent bonds; giant covalent substances, pages 159-60, GCSE Combined Science Trilogy 1, Hodder, AQA '']

Revision as of 23:06, 3 November 2019

Key Stage 4

Meaning

A covalent bond is a type of chemical bond in which atoms share electrons with one another.

About Covalent Bonds

Atoms are more chemically stable when their outer shell is full of electrons. One way atoms can have a full outer shell is by sharing some electrons with other atoms, this is a covalent bond.
Covalent bonds happen between non-metal elements.
Covalent bonds can be represented by a Dot and Cross Diagram to show how the electrons are shared between the outer shells of different atoms.

Examples

OxygenDotandCrossDiagram.png
NitrogenDotandCrossDiagram.png
CarbonDioxideDotandCrossDiagram.png
The two Oxygen atoms each share two of their electrons with one another. The two Nitrogen atoms each share three of their electrons with one another. Each Oxygen shares two of its electrons with the Carbon atom while the Carbon atom shares two electrons with each Oxygen atom.

References

AQA

Covalent bond, pages 57-9, 62-3, 72-5, GCSE Chemistry; Student Book, Collins, AQA
Covalent bonds, page 116, GCSE Combined Science; The Revision Guide, CGP, AQA
Covalent bonds, page 31, GCSE Chemistry; The Revision Guide, CGP, AQA
Covalent bonds, pages 154, 156-7, 163, GCSE Combined Science Trilogy 1, Hodder, AQA
Covalent bonds, pages 29, 78-88, GCSE Combined Science Trilogy; Chemistry, CGP, AQA
Covalent bonds, pages 29, 80-90, GCSE Chemistry, CGP, AQA
Covalent bonds, pages 38, 44-51, 149, 224-225, GCSE Chemistry; Third Edition, Oxford University Press, AQA
Covalent bonds, pages 41-2, 47-8, GCSE Chemistry, Hodder, AQA
Covalent bonds; giant covalent substances, page 44, GCSE Chemistry, Hodder, AQA
Covalent bonds; giant covalent substances, pages 159-60, GCSE Combined Science Trilogy 1, Hodder, AQA