Structure & Bonding of Carbon (AQA GCSE Chemistry Combined Science): Flashcards
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15 cards from this deck
What are giant covalent structures?
What are giant covalent structures?
Many atoms connected by covalent bonds in a network
Bonds per carbon atom in diamond
Bonds per carbon atom in diamond
Four covalent bonds
Diamond structure type
Diamond structure type
3D lattice structure
Diamond hardness
Diamond hardness
Very hard
Diamond electrical conductivity
Diamond electrical conductivity
Does not conduct electricity
Why is diamond very hard?
Why is diamond very hard?
Breaking it requires breaking many strong covalent bonds
Bonds per carbon atom in graphite
Bonds per carbon atom in graphite
Three covalent bonds
Graphite structure
Graphite structure
Layered structure
Graphite texture
Graphite texture
Soft and slippery
Graphite electrical conductivity
Graphite electrical conductivity
Conducts electricity
Why graphite conducts electricity
Why graphite conducts electricity
Delocalised electrons can move and carry current
Why diamond can't conduct electricity
Why diamond can't conduct electricity
All electrons used in bonding, none free
Diamond & graphite melting points
Diamond & graphite melting points
Both very high
Delocalised electrons in graphite
Delocalised electrons in graphite
Free electrons that can move between layers
Why graphite layers slide
Why graphite layers slide
Weak forces between layers