Structure and bonding of carbon Flashcards
(17 cards)
What are the different forms of carbon?
Diamond, graphite, graphene and fullerenes
The atoms are arranged in _____________ in the different forms of carbon
Different ways
How many covalent bonds does diamond have?
Carbon atoms form 4 covalent bonds with other carbon atoms
Why is diamond very hard?
It is held together by strong covalent bonds
Does diamond conduct electricity? Why?
No because it has no delocalised electrons
What is graphite’s structure?
Carbon atoms form layers of hexagonal rings
How many bonds are there in graphite?
Each carbon atom bonds to 3 other carbon atoms
Why is graphite soft and slippery?
Layers of atoms are not bonded together and can slide over each other
Can graphite conduct electricity?
Yes as one electron from each carbon atom is delocalised
Is graphite a good thermal conductor?
Yes as the delcoalised electrons can move through the layers
What is graphene?
A single layer of graphite just one atom thick
Does graphene conduct electricty?
Yes and is very strong
What are fullerenes?
Molecules of carbon with hollow shapes
What is the formula of buckminster fullerene (bucky ball)?
C60
What have a very high length to diameter ratio?
Carbon nanotubes
What are fullerenes used for?
To deliver drugs to specific body parts, as catalysts and as reinforcement for composite materials
What will graphene help do?
Create new developments in the electronics industry in the future
