covalent - type of bond where electrons are shared, giant - describes an extensive lattice structure, very high - melting point of diamond, no free electrons - why does diamond not conduct electricity?, free electrons - why does graphite conduct electricity?, cutting tools - a use of diamond in industry, silicon dioxide - a giant covalent structure with the symbol SiO2, 4 - number of covalent bonds between carbon atoms in diamond, 3 - number of covalent bonds between carbon atoms in graphite, pencils and lubricant - uses of graphite, weak bonds - present between the layers in graphite, hexagonal - the shape of carbon rings in graphite, graphene - a single layer of graphite, fullerenes - hollow shaped molecules made of carbon,

Yr 10 Carbon Allotropes June 21




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