Chp. 3.5 Quiz Bonding in Metals

Why are alloys generally used to make everyday objects?

• Alloys are often stronger and less reactive than pure metals

• Alloys have higher melting points 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 metals

• ductile

• good electrical conductor

• good thermal conductor

• malleable

At room temperature, most metals are

• liquid

• solid

• gas

• an alloy

An attraction between a positive metal ion and surrounding electrons is a(n) ___ bond

• covalent
• polar
• metallic
• ionic

Metals typically have ___ melting points

• average
• medium
• high
• low

The metal fins that cool a motorcycle's engine make use of the high ___ conductivity of metals

• thermal
• magnetic
• electrical
• mechanical

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metals are often used to make wire because they are

• flexible and have low electrical conductivity.
• malleable and have low electrical conductivity.
• ductile and have high electrical conductivity.
• brittle and have low electrical conductivity.

metals are used in electrical wires because they have high ___ conductivity

• electrical
• optical
• thermal
• mechanical

nonmetals are unlikely to form metallic bonds because their ___ are strongly held

• protons
• atomic number
• valence electrons
• electronegativity

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