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.
Sand is made up of what?
Silica.
Each grain of sand is what?
One giant structure of silicon and oxygen.
