C3.5 Giant Covalent Structures Flashcards
(5 cards)
1
Q
In diamond, how many bonds does each carbon atom form?
A
Four covalent bonds.
2
Q
Why is diamond hard?
A
Because of its strong, rigid 3D structure with each carbon bonded to four others.
3
Q
Why can graphite conduct electricity?
A
has delocalised electrons that are free to move between the layers of hexagonal rings.
4
Q
Why is graphite soft and slippery?
A
The layers can slide over each other because of weak forces between them.
5
Q
What is silicon dioxide and where is it found?
A
It’s a giant covalent structure found in sand.
