Metalliods

Multiple Choice

Why are metalloids considered important in scientific and industrial applications?

• Because they are rare elements

• Because they have properties of both metals and nonmetals

• Because they are only found in nature

• Because they are poor conductors of electricity

Multiple Choice

Which of the following elements is NOT commonly classified as a metalloid?

• Boron

• Silicon

• Arsenic

• Iron

Multiple Select

Which of the following are physical characteristics of metalloids?

• Shiny solids at room temperature

• Malleable and ductile

• Brittle like nonmetals

• Conduct electricity like metals

Multiple Choice

Which of the following best describes the electrical conductivity of metalloids?

• They conduct electricity better than metals.

• They do not conduct electricity at all.

• They conduct electricity better than nonmetals but less efficiently than metals.

• They conduct electricity the same as nonmetals.

Open Ended

How do metalloids differ from metals and nonmetals in terms of their properties and uses?