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6 Cards in this Set
- Front
- Back
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Properties of most giant covalent structures |
High melting and boiling points don’t conduct electricity Aren’t soluble in water |
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Diamond |
Network of carbon atoms that each form 4 covalent bonds Rigid lattice structure very hard used to strengthen cutting tools |
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Graphite |
Each carbon atom only forms three covalent bonds No covalent bonds between the layers so can move over each other Soft and slippery so ideal lubricating material Carbons fourth outer electron is free so we can conduct electricity Often used for electrodes |
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Graphene |
Sheet of carbon atoms joined together in hexagons Two-dimensional as only one atom thick |
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Fullerenes |
Molecules of carbon shaped like closed tubes or hollow balls Mainly arranged in hexagons or pentagons or heptagons Can be used to cage as the molecules can be used to deliver drug directly to cells in body Large surface area so can make good industrial catalysts |
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Nanotubes |
Fullerenes Shaped like tiny cylinders of graphene Strengthen materials without adding weight |
