Giant metallic structures and alloys (AQA GCSE Chemistry Combined Science): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What happens to metal atoms in metallic bonding?
What happens to metal atoms in metallic bonding?
They lose electrons to become + ions
What are delocalised electrons in metals?
What are delocalised electrons in metals?
Electrons free to move in the structure
Why do most metals have high melting and boiling points?
Why do most metals have high melting and boiling points?
Metallic bonds are very strong
Why is mercury liquid at room temperature?
Why is mercury liquid at room temperature?
It has relatively weak metallic bonds
Why are metals excellent electrical conductors?
Why are metals excellent electrical conductors?
Delocalised electrons can move freely
Why are metals good heat conductors?
Why are metals good heat conductors?
Delocalised electrons gain & carry energy
What is an alloy?
What is an alloy?
A mixture of metals or elements
How do alloys compare to pure metals?
How do alloys compare to pure metals?
They are usually harder and stronger
Why are alloys harder and stronger than pure metals?
Why are alloys harder and stronger than pure metals?
Different sized ions stop layers sliding
What is brass made from?
What is brass made from?
Copper and zinc
What is steel made from?
What is steel made from?
Iron mixed with carbon
Why is steel stronger than pure iron?
Why is steel stronger than pure iron?
Adding carbon makes it much stronger