Graphite

What is graphite

another form of carbon

What’s graphite

a giant covalent molecule

whats a key property about graphite

It’s soft and slippery

whats a second key fact about graphite

graphite has a very high melting and boiling point

What’s a third key property about graphite

its a good conductor of both electricity and heat

What do carbon atoms form

Hexagonal rings

What are the hexagonal rings of carbon atoms arranged in to

Layers

What is between the layers

covalent bonds

What does it mean if there are no covalant bounds between the layers

Layers can slide over each other making graphite soft and slippery

What’s graphite used as in machines

a lubricant

What do we need to do if we want to melt graphite

break covalent bonds

What does breaking covalent bonds take a great deal of

energy

What do each carbon atoms form in covalent bonds

Covalent bonds to three other carbon atoms

What do scientists call electrons released from carbon atoms

delocalised electrons

What can delocalised elections do

move

What does it mean if delocalised electrons can move

they can conduct electricity And thermal energy