GIANT COVALENT LATTICE STRUCTURES

DIAMOND
1. each carbon atom has 4 covalent bonds with four other carbon atoms in ALL DIRECTIONS
  1. very hard
    1. used for drill tips
  2. rigid structure
2. no delocalised electrons
  1. can't carry electric current
GRAPHITE
1. each carbon atom has 3 covalent bonds
  1. each carbon atom has one delocalised, free electron
    1. conducts heat and electricity
2. layers of atoms
  1. slide over each other
    1. soft and slippery
  2. weak intermolecular forces between layers
GENERAL FACTS
1. no charged ions
2. all atoms are bonded to each other by strong covalent bonds
  1. lots of energy needed to break bonds
    1. very high melting/boiling points
SILICA
1. giant covalent lattice structure
2. lining of furnaces
  1. very high melting point
3. silicon dioxide

Resumen del Recurso

	Creado por amybellingham hace alrededor de 9 años