Section 3: Giant covalent structures made of carbon Flashcards
In giant covalent bonds, how are all the atoms bonded?
In giant covalent compounds, all the atoms are bonded via strong covalent bonds in a giant lattice structure.
In a diamond, how many other carbons is C bonded to in a tetrahedral arrangement.
4
Does a diamond conduct electricity?
No, diamonds don’t contain delocalised electrons or ions.
How hard are diamonds?
Diamonds are VERY hard because each carbon bonds to 4 other carbon atoms with strong covalent bonds to form a lattice.
Do diamonds have a high melting point?
Yes, a large amount of energy is needed to overcome all the strong covalent bonds in the lattice.
What shape do graphite have layers on?
hexagons
What happens to these extra electrons?
The extra electrons become delocalised between the layers.
Does graphite conduct electricity?
Yes, the delocalised electrons are free to move and carry charge through the structure.
What is graphite like?
Soft and slippery. Only weak intermolecular forces exist between layers, so layers can slide.
