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

Fill in the Blanks

Metalloids are positioned along the

line separating metals and nonmetals in the periodic table.

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?