C2.3.1 - Carbon Flashcards
1
Q
What are allotropes?
A
Different forms of an element in the same state but with different atomic arrangements
2
Q
What are some of the properties of diamond?
A
It is transparent and very hard
3
Q
What are some properties of graphite?
A
- It is grey-black
- Soft
- Has high melting points
- Can conduct electricity
4
Q
Why can’t diamond conduct electricity?
A
It has no delocalised electrons
5
Q
What is the structure of diamond?
A
- Layers of carbon atoms
- Held together by strong covalent bonds
- Forming a giant lattice
- Each carbon atom is bonded to 4 other carbon atoms
- Each covalent bond is only a single C-C bond
6
Q
What is the structure of graphite?
A
- Layers of carbon atoms
- Held together by covalent bonds and intermolecular forces
- Forming a layered structure
7
Q
What is the structure of graphene?
A
- A single layer/sheet of graphite
- Each carbon atom is bonded to 3 other carbons
- Each covalent bond can be a carbon-carbon single or double bond
8
Q
What is the structure of fullerene?
A
- A single layer/sheet of graphite
- Rolled into a tube of curved into a ball
- Each carbon atom is bonded to 3 other carbon atoms
- Each covalent bond can be a single or double carbon-carbon bond
9
Q
Why is graphite slippery?
A
Because the intermolecular forces between each layer are weak, so layers can slide over each other easily
10
Q
What are fullerenes?
A
Family of carbon allotropes with tubes or balls of atoms
11
Q
What is a nanotube?
A
A type of fullerene molecule in which carbon atoms form a hollow tube
