diamond and graphite Flashcards
(8 cards)
1
Q
allotropes of carbon
A
diamond , graphite , graphene , fullerenes
2
Q
what are allotropes
A
different structural forms of the same element in the same physical state
3
Q
what is a giant covalent structure
A
a regular lattice of covalently bonded atoms e.g diamond and graphite
4
Q
characteristic of a giant covalent structure
A
very strong , high melting point, not good conductors of electricity : no free electrons or ions that can move around
5
Q
how many carbon atoms is diamond bonded to
A
4
6
Q
how many other carbon atoms is graphite bonded to
A
3
7
Q
what exists in each graphite allotrope
A
1 spare electron so it becomes delocalised and is free to move around and allows it to conduce electricity and heat
8
Q
A
