Metallic Bonds and Alloys

Front

What is an alloy?

Back

An alloy is a mixture of two or more metals, or a metal and another element, that has metallic properties.

Front

Which of the following is NOT an alloy?

Back

Copper is NOT an alloy; it is a pure metal.

Front

What is the basis of a metallic bond?

Back

The basis of a metallic bond is the attraction between positive metal ions and free floating electrons.

Front

Why do metallic bonds form?

Back

Metallic bonds form because metals 'want' to give up valence electrons.

Front

What is a characteristic property of metals?

Back

Metals are typically hard, can conduct electricity, and are malleable.

Front

Which property is NOT characteristic of metals?

Back

Very brittle (breaks easily) is NOT a characteristic property of metals.

Front

What is the role of free electrons in metallic bonding?

Back

Free electrons allow metals to conduct electricity and heat.

Front

How do alloys differ from pure metals?

Back

Alloys have different properties than pure metals, such as increased strength or resistance to corrosion.

Front

Give an example of a common alloy.

Back

Bronze, which is made of copper and tin, is a common alloy.

Front

What is stainless steel made of?

Back

Stainless steel is an alloy made primarily of iron, with chromium and nickel added.