2.3 Steucture And Bonding Of Carbon Flashcards
1
Q
Allatrope
A
Different forms of the same element
2
Q
Properties of diamond (5p)
A
- Giant covalent structure
- Tetrahedral shape
- Very high melting point
- Each carbon atom is bonded to 4 other carbon atoms
- Can’t conduct electricity
3
Q
Why does Diamond have its properties? (2p)
A
- Strong covalent bonds hold all atoms together so lots of energy is needed to break these apart
- It has a giant covalent structure and has a very rigid network of carbon atoms
4
Q
Graphite properties (5p)
A
- Giant covalent structure
- Hexagonal shape
- Each carbon atom forms 3 covalent bonds and one atom is delocalised
- Conducts electricity
- Soft and slippery
5
Q
Why does graphite have its properties? (3p)
A
- Strong covalent bonds hold atoms together, so it is difficult to break
- Layers are held together with weak force, meaning layers can slide over each other
- Delocalised electrons move and carry charge
6
Q
What is graphene?
A
A single layer of graphite
7
Q
Graphene properties (4p)
A
- Hexagonal shape
- 1 cell thick and 2D
- Strong and light
- Conducts electricity
8
Q
Fullerene properties: (5p)
A
- 1 cell thick
- Hexagonal shape
- Hollow sphere
- simple covalent
- Have 3 carbon atoms connected to 1 atoms with 1 delocalised electron
9
Q
Use of fullerenes (3p)
A
- Carbon nanotubes
- Could be used to grandmaster drugs around the body
- Make good lubricants
10
Q
First fullerene to be discovered
A
Buckminsterfullerene/ bucky ball
11
Q
Buckminsterfullerene formula
A
C60
12
Q
Carbon nanotube properties
A
Conduct electricity
High tensile strength and resistant to breakage
