Describe graphite structure: (7)

Giant covalent structure - LAYERED C is covalently bonded to 3 other C = trigonal planar covalent bonds in each layer but only WEAK LONDON FORCES BW LAYERS explains why graphite is a good lubricant = not much force needed to separate layers HIGH MP bec of covalent bonds within layers must be broken NOT water soluble bec of strong covalent bonds between atoms conducts electricity bec of free electrons in 1 carbon atom can move WITHIN layers