alvinhtleung 發表於 24-2-2008 22:19:09

Electrical conductivity

Explain y electrical conductivity of the following substances are in the order:

diamond ,C60,nanotube.(they are in ascending order).

Ka明 發表於 29-2-2008 20:48:52

the structure of diamond is tetrahedral,which one carbon atom bond to 4carbon atom,it is sp3 hybrid,no free electron is avalible to move freely,thus diamond is not conduct eletricity!
the carbon atoms in C60 and nanotube is sp2 hybrid,there is one free electron in each carbon atom,thus they are both conduct electricity!!

L.K. 發表於 22-2-2010 14:57:00

?

nanotube 係唔係姐係石墨?

永樂 發表於 23-2-2010 20:45:51

nanotube, C60 應該係considered as different allotropes of carbon.
即係唔係graphite
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