Question 1

Which statements correctly compare metals and nonmetals?

Accepted Answer

Metals tend to be good conductors of thermal energy.

Nonmetals tend to be good insulators of thermal energy.

Answer

Metals are dull and brittle.

Nonmetals are shiny and malleable.

Answer

Metals are good insulators of electricity.

Nonmetals tend to be good conductors of electricity.

Answer

Metals cannot be stretched into thin wires.

Nonmetals can be stretched into thin wires.

Question 2

Which statements correctly compare metals and metalloids?

Accepted Answer

Metals conduct electricity very well, while metalloids only sometimes conduct electricity.

Answer

Metals and metalloids are both dull and brittle.

Answer

Metals are always poor conductors, while metalloids are excellent conductors.

Answer

Metals and metalloids both cannot be shaped into thin wires.

Question 3

Which statements correctly compare rare Earth elements and common metals?

Accepted Answer

Rare Earth elements are not shiny, while common metals are shiny.

Answer

Rare Earth elements are poor conductors, while common metals are excellent conductors.

Answer

Rare Earth elements are often shiny and conductive like metals, but are especially important in modern technology such as magnets, lasers, and electronics.

Answer

Rare Earth elements are brittle and dull, while common metals are malleable and shiny.

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