Understanding Alloys

What is an alloy?

• A pure metal with no other elements

• A mixture of two or more elements with at least one metal

• A compound of non-metal elements

• A single element in its pure form

Why are pure metals considered malleable?

• Because their layers of ions can slide over each other easily

• Because they are always in liquid form

• Due to the presence of impurities

• Because they have a fixed structure

How does the structure of an alloy differ from that of a pure metal?

• Alloys are always softer than pure metals

• Alloys have a disrupted arrangement of ions due to added elements

• Alloys have layers that can easily slide over each other

• Alloys have a regular arrangement of ions

Which of the following is an example of an alloy?

• Copper

• Bronze

• Iron

• Carbon

Why are alloys often preferred over pure metals in construction?

• They conduct electricity better

• They are cheaper

• They are harder and more durable

• They are more malleable