Examples of Giant Covalent Structures Flashcards
Name the 3 main examples of giant covalent structures?
Diamond.
Graphite.
Silicon dioxide.
Diamond and graphite are both made only just what?
Carbon atoms.
What is a diamond structure like?
Each carbon atom forms 4 covalent bonds.
Rigid giant covalent structure.
The diamond structure makes it what?
Hardest natural substance.
What is diamond used for?
Drill tips.
Jewellery.
What is a graphite structure like?
Each carbon atom only forms 3 covalent bonds.
What does graphite’s 3 covalent bonds create?
Layers.
Free to slide over each other.
Graphite’s texture is?
Soft and slippery.
The layers in a graphite structure are?
Held together loosely.
Rubbed off on to paper.
Why are the layers in graphite held together loosely?
Weak intermolecular forces between layers.
Graphite is the only…
Non-metal.
Graphite is a good…
Conductor of heat and electricity.
One graphite atom has one what?
Delocalised electron.
What conducts heat and electricity?
Free electrons.
What is silicon dioxide sometimes called?
Silica.
