7.3 Bonding in Metals

Why are alloys generally used to make everyday objects?

• Alloys are often stronger and less active than pure metals.

• Alloys have different melting point than pure metals.

• Alloys are less expensive to produce than pure metals.

• Alloys have ionic bonds instead of metallic bonds.

Metallic bonding is...

• a type of covalent bond.

• a type of ionic bond.

• an attraction between positive and negative ions.

• an attraction between positive ions and electrons.

Which of the following is NOT a property of a metal?

• ductile
• good electrical conductor
• good thermal insulator
• malleable

At room temperature, most metals are

• liquid
• solid
• gas
• an alloy

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Metals are often used to make wire because they are 

• malleable
• ductile

Metals are used in electrical wires because they have a high ____________conductivity. 

•  electrical
• thermal

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All alloys are mixtures.

• True

• False

The most common element added to iron to create steel alloy is ...

• tungsten

• vanadium

• chromium

• carbon

Rusting is the corrosion of:

• Zinc

• Iron

• Lithium

• Nickel

Which of the following has a full valence shell?

• Oxygen
• Neon
• Barium
• Carbon

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