Structure & Bonding of Carbon (AQA GCSE Chemistry): Flashcards
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Giant covalent structures definition
Giant covalent structures definition
Huge networks of atoms joined by covalent bonds
Pattern formed in giant covalent structures
Pattern formed in giant covalent structures
Lattice
No. of carbons each carbon bonds to in diamond
No. of carbons each carbon bonds to in diamond
4
Type of structure diamond forms
Type of structure diamond forms
3D lattice
Why diamond is very hard
Why diamond is very hard
Each carbon held by 4 strong covalent bonds
Why diamond doesn't conduct electricity
Why diamond doesn't conduct electricity
All electrons used in bonding, none free to move
Why diamond has very high melting point
Why diamond has very high melting point
Lots of strong covalent bonds need breaking
No. of carbons each carbon bonds to in graphite
No. of carbons each carbon bonds to in graphite
3
Structure that graphite forms
Structure that graphite forms
Layers
Forces between graphite layers
Forces between graphite layers
Weak forces
Why graphite is soft and slippery
Why graphite is soft and slippery
Layers slide over each other due to weak forces
Why graphite conducts electricity
Why graphite conducts electricity
Has delocalised electrons that can move
Why graphite has very high melting point
Why graphite has very high melting point
Strong covalent bonds within layers need breaking
What are delocalised electrons in graphite?
What are delocalised electrons in graphite?
Free electrons that can move around
Two uses of graphite
Two uses of graphite
Pencils and lubricant