Structures

Diamond is…

Strong

Why does diamond not conduct?

There are no free ions and no free electrons as each carbon is bonded to 4 other carbons.

Graphite is layered…

Hexagonally. Each carbon atom is bonded to 3 others. This leaves one electron from each carbon that is not bonded and therefore becomes delocalised (conductor.)

Graphite has __ intermolecular forces.

Weak.

The intermolecular forces are between the layers, making it so that they can slide over eachother. Like a lubricant.

Graphene is…

A single layer of graphite.

What is graphene used in?

Electronics

Fullerene is…

Hollow cages of carbon

What are fullerenes used for?

Drug transfer

Nanotubes are…

Thin and long tubes of hexagonally bonded carbon

What are nanotubes used for?

Tennis racket frames

Polymers are…

Structures made up of smaller units called “monomers”

Bonding in polymers is…

Covalent

The intermolecular forces between layers of polymers are __

Weak

Why are the melting/boiling points of polymers still high even though they have weak intermolecular forces?

Because, since they have a super high surface area, there are many of these intermolecular forces, meaning that it still takes a lot of energy to break them apart