Y9 Chemistry - Characteristics of graphite

Graphite structure and bonding (5 points)

Giant covalent lattice, each carbon atom covalently bonded to 3 others, delocalised electrons, weak IM forces (layers slide past), regular hexagonal structure

Graphite properties (6 points)

Conducts electricity, soft and slippery, high melting/boiling point, insoluble in water, loghtweiht, thermal cpnductor

Uses (3 points)

Pencil, lubricant, thermal conductor

Why do delocalised electrons conduct electricity and transfer heat

They conduct electricity because they are delocalised and freely move throughout the structure carrying electric charge. They also transfer heat because they are delocalised electrons freely moving throughout the structure carrying electric charge