Giant Covalent Structures

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Sand - It is mostly composed of the mineral...
quartz, which is silicon dioxide
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It has a giant covalent structure made up of...
silicon and oxygen atoms
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Diamond - Every Carbon atom is covalently bonded to...
four more carbon atoms
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It is hard, has a high melting and boiliing point but...
can't conduct electricity as there are no free ions/electrons
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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
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This means the Graohite is soft and slippery because the...
layers sip over each other
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It can also conduct electricity because the free electrons...
between the layers can carry a charge
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Other cards in this set

Card 2

Front

silicon and oxygen atoms

Back

It has a giant covalent structure made up of...

Card 3

Front

four more carbon atoms

Back

Preview of the back of card 3

Card 4

Front

can't conduct electricity as there are no free ions/electrons

Back

Preview of the back of card 4

Card 5

Front

4th electron is free and becomes delocalized between the layers of graphite

Back

Preview of the back of card 5
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