Allotropes of Carbon Flashcards
What types of bonds are found in diamond?
strong covalent bonds
How many other carbon atoms is each carbon atom bonded to in diamond?
it is bonded to 4 others
What type of structure does diamond have?
giant lattice
Why is diamond very hard?
carbon atoms have a giant covalent structure which make diamond hard
Why cannot diamond conduct electricity?
do not have any delocalised electrons
How many carbon atoms is each carbon atom bonded to in graphite?
3 other carbon atoms
What types of bonds are found it graphite?
covalent bonds
What type of structure does graphite have?
giant lattice
Why does graphite have a high melting point?
requires lots of energy to overcome the giant covalent bonds
Why is graphite soft?
there are no covalent bonds between the layers
Why can graphite conduct electricity?
contain delocalised electrons
Explain 3 properties of graphene?
- good conductor of electricity, contains delocalised electrons which can move and carry charge
- very strong due to the giant covalent structure
- high melting and boiling point in order to break the strong covalent bonds so require a lot of energy
Why do polymers have a high melting point?
takes a lot of energy to break the strong intermolecular forces
