Giant covalent structures (5.2.2.6) | AQA GCSE Combined Science: Trilogy (8464) — Chemistry — Higher | KnowledgeSet

Giant covalent structures

Chemistry (Combined Science) · GCSE · AQA · AQA GCSE Combined Science: Trilogy (8464) — Chemistry — Higher · Specification point · 5.2.2.6 · Bonding, structure, and the properties of matter · How bonding and structure are related to the properties of substances

Giant covalent structures

Recognising giant covalent structures

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Learning Objectives

5.2.2.6 Giant covalent structures

Content	Key opportunities for skills development
$Substances that consist of giant covalent structures are solids with very high melting points. All of the atoms in these structures are linked to other atoms by strong covalent bonds. These bonds must be overcome to melt or boil these substances. Diamond and graphite (forms of carbon) and silicon dioxide (silica) are examples of giant covalent structures. Students should be able to recognise giant covalent structures from diagrams showing their bonding and structure.$	$MS 5b Visualise and represent 2D and 3D forms including two- dimensional representations of 3D objects. WS 1.2$

Content

Key opportunities for skills development

Substances that consist of giant covalent structures are solids with very high melting points. All of the atoms in these structures are linked to other atoms by strong covalent bonds. These bonds must be overcome to melt or boil these substances. Diamond and graphite (forms of carbon) and silicon dioxide (silica) are examples of giant covalent structures. Students should be able to recognise giant covalent structures from diagrams showing their bonding and structure.

MS 5b Visualise and represent 2D and 3D forms including two- dimensional representations of 3D objects. WS 1.2