Giant covalent structures (Edexcel GCSE Chemistry Combined Science): Quizzes
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Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What are giant covalent structures?
What are giant covalent structures?
Huge networks of atoms bonded covalently
Which of these is an example of a giant covalent structure?
Which of these is an example of a giant covalent structure?
Diamond
Why do giant covalent structures have very high melting points?
Why do giant covalent structures have very high melting points?
Strong covalent bonds need lots of energy
Why can't most giant covalent structures conduct electricity?
Why can't most giant covalent structures conduct electricity?
No free-moving charged particles
Which giant covalent structure can conduct electricity?
Which giant covalent structure can conduct electricity?
Graphite
How are carbon atoms arranged in graphite?
How are carbon atoms arranged in graphite?
In layers arranged in hexagons
Why is graphite soft and slippery?
Why is graphite soft and slippery?
Layers slide over each other easily
How many bonds does each carbon atom form in graphite?
How many bonds does each carbon atom form in graphite?
Three
What happens to the remaining electron in graphite's carbon atoms?
What happens to the remaining electron in graphite's carbon atoms?
It is free to move
Why can graphite conduct electricity?
Why can graphite conduct electricity?
Free electrons can move through layers