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90008
Diamond and Graphite
Descrição
Chemistry Mapa Mental sobre Diamond and Graphite, criado por thanh tran em 14-05-2013.
Sem etiquetas
chemistry
chemistry
Mapa Mental por
thanh tran
, atualizado more than 1 year ago
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Criado por
thanh tran
mais de 11 anos atrás
233
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0
Resumo de Recurso
Diamond and Graphite
Graphite
Layered Structure
Weak intermolecular forces between the layers
the layers can slide over each other making graphite slippery
Graphite in pencils leave the black mark as it wears away
Good lubricants as it also has a high melting point so won't break down like oil would
Each carbon atom is joined to 3 other atoms with strong covalent bonds
One free delocalised electron
Can be used as electrodes as it can conduct electricity
It can conduct heat
Diamond
Hard
Cutting tools
Lustrous and transparent
can be cut into shapes to allow light to pass through it to make it look like its sparkling
jewellery
Each carbon atom forms strong covalent bonds with 4 other atoms to form a giant covalent structure
Explains its extreme hardness and high melting point
Cannot conduct electricity as there are no delocalised electrons who are free to move to carry charge
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