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Electron bonding


Do giant ionic structures have high or low melting points? High-they have strong bonds
Can giant ionic structures conduct electricity? When dissolved or molten because the ions separate and are free to move
Do simple molecular substances have high or low melting points? Low because the inter-molecular forces are very weak
Can simple molecular substances conduct electricity? No because they have no free electrons and there are no ions
Do giant covalent structures have high or low melting points? High-strong covalent bonds
Can giant covalent structures conduct electricity? No-they are insoluble in water but do not even conduct when molten
Do metallic structures have high or low melting points? High-they have a giant structure
Can metallic structures conduct electricity? Yes-they have electrons that are free to move
Why are metals malleable? The metals have layers which can easily slide over each other
Why can graphite and buckminster fullerene conduct electricity even though they are covalent structures? Each carbon atom only forms three covalent bonds, this leaves each carbon atom with a free electron which can conduct electricity
What is the structure of graphite? Graphite structures are arranged in layers, with inter-molecular forces between the layers
What is the structure of buckminster fullerene? Spherical, football shape
What is the structure of diamond? It is a giant covalent structure made of carbon in which each carbon atom forms four covalent bonds
What is the structure of silicon dioxide? It is a giant covalent structure made of silicon and oxygen
Created by: Marge-Homer
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