8th Grade 3.4

Multiple Choice

Why are alloys generally used to make everyday objects?

• alloys are often stronger & 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

Multiple Choice

Metallic bonding is ____

• a type of covalent bond

• a type of ionic bond

• an attraction between positive & negative ions

• an attraction between positive ions & electrons

Multiple Choice

Which of the following is NOT a property of metals?

• ductile

• good electrical conductor

• good thermal insulator

• malleable

Multiple Choice

At room temperature, most metals are ____

• solid

• liquid

• gas

• an alloy

Multiple Choice

An attraction between a positive metal ion and surrounding electrons is a _____ bond.

• metallic

• chemical

• gravitational

Multiple Choice

Metals typically have ____ melting points.

• high

• low

• variable

Multiple Choice

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

• thermal

• electrical

• magnetic

Multiple Choice

Metals are often used to make wire because they are______

• inexpensive

• ductile

• insulating

Multiple Choice

Metals are used in electrical wires because they have high ____ conductivity.

• thermal

• magnetic

• electrical

Multiple Choice

Nonmetals are unlikely to form metallic bonds because their _____ strongly held.

• valence electrons

• protons

• covalent bonds