Difference between revisions of "Graphene"

Revision as of 01:13, 6 November 2019

Key Stage 4

Meaning

Graphene is an allotrope of carbon in which the atoms are bonded in a hexagonal arrangement in a single layer.


A diagram showing the arrangement of carbon atoms in graphene.

About Graphene

Graphene is a giant covalent structure.

Graphene is a single layer of graphite.

Graphene is a good electrical conductor because it only uses 3 out of the 4 electrons in the outer shell to bond with other atoms allowing the last electron to move freely around the giant covalent structure.

Large sheets of graphene are extremely strong which is a very useful property. A layer of graphene as thin as cling film could support the weight of an entire elephant.

References

AQA

Graphene, page 88, GCSE Combined Science Trilogy; Chemistry, CGP, AQA

Graphene, page 90, GCSE Chemistry, CGP, AQA

Graphene, page 119, GCSE Combined Science; The Revision Guide, CGP, AQA

Graphene, page 34, GCSE Chemistry; The Revision Guide, CGP, AQA

Graphene, page 51, GCSE Chemistry; Third Edition, Oxford University Press, AQA

Graphene, page 55, GCSE Chemistry, Hodder, AQA

Graphene, pages 167-8, GCSE Combined Science Trilogy 1, Hodder, AQA

Graphene, pages 84-5, 88, 343, GCSE Chemistry; Student Book, Collins, AQA

@@ Line 15: / Line 15: @@
 : [[Graphene]] is a good [[Electrical Conductor|electrical conductor]] because it only uses 3 out of the 4 [[electron]]s in the [[Outer Shell|outer shell]] to [[bond]] with other [[atom]]s allowing the last [[electron]] to move freely around the [[Giant Covalent Structure|giant covalent structure]].
 : Large sheets of [[graphene]] are extremely strong which is a very useful [[Physical Property|property]]. A layer of [[graphene]] as thin as cling film could support the [[weight]] of an entire elephant.
+===References===
+====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=ad276ad49df77ab4b40ab4fd0fe09954 ''Graphene, page 119, GCSE Combined Science; The Revision Guide, 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 ''Graphene, page 51, GCSE Chemistry; Third Edition, Oxford University Press, AQA '']
+:[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 ''Graphene, page 55, GCSE Chemistry, Hodder, AQA '']
+:[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 ''Graphene, pages 167-8, GCSE Combined Science Trilogy 1, Hodder, AQA '']
+:[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 ''Graphene, pages 84-5, 88, 343, GCSE Chemistry; Student Book, Collins, AQA '']