Giant Covalent Structures 0.0 / 5 ? ChemistryAtoms and compoundsGCSEAQA Created by: asho glenoCreated on: 14-04-15 16:04 Sand - It is mostly composed of the mineral... quartz, which is silicon dioxide 1 of 7 It has a giant covalent structure made up of... silicon and oxygen atoms 2 of 7 Diamond - Every Carbon atom is covalently bonded to... four more carbon atoms 3 of 7 It is hard, has a high melting and boiliing point but... can't conduct electricity as there are no free ions/electrons 4 of 7 Graphite - Each carbon atom is bonded to only 3 carbon atoms which means the... 4th electron is free and becomes delocalized between the layers of graphite 5 of 7 This means the Graohite is soft and slippery because the... layers sip over each other 6 of 7 It can also conduct electricity because the free electrons... between the layers can carry a charge 7 of 7
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