Chemistry 2.3.2

Question 1

Each Carbon Atom in Graphite Forms ___ ___ with ___ other Carbon Atoms.

Answer 1

Covalent Bonds, 3.

Question 2

What is a Single Layer of Graphite Called?

Answer 2

Graphene.

Question 3

Because each Carbon Atom in Graphite only Forms Covalent Bonds with ___ other Carbon Atoms, each C Atom leaves…

Answer 3

3, 1 Delocalised Electron each.

Question 4

Where do the Delocalised Electrons in Graphite move across?

Answer 4

Across the Layers of Graphene.

Question 5

Graphite is a very ___ Conductor of Heat & Electricity. Why?

Answer 5

Good. Because each C Atom leaves 1 Delocalised Electron each, which can travel across the Graphene Layers’ Surfaces, Carrying Charge.

Question 6

Why is Graphite very Slippery?

Answer 6

Because the Covalent Bonds within the Layers are very Strong, but the Layers are Attracted to each other by weak Intermolecular Forces, so the Layers can Slide over each other, making Graphite Soft & Slippery.

Question 7

Physical Properties of Graphite: (3)

Answer 7

-Conducts Electricity & Heat.

-Very High MP.

-Soft & Slippery.