Which of the following statements about metalloids is true? metalloids have high conductivity at low temperatures. metalloids are hard like metals but easily vaporize into nonmetals. metalloids have properties that fall between those of metals and nonmetals. metalloids are rarely used for anything besides scientific experiments

Option (c) is the correct answer.

Explanation:

Metalloids are the substances or elements that show properties of both metals and non-metals.

Metals are good conductors of heat and electricity. They have shiny surface and can be drawn into thin wires and sheets.

Whereas non-metals are bad conductors of heat and electricity. They are brittle in nature and are not shiny.

Similarly, metalloids are shiny but they are brittle at the same time with a relatively good electrical conductivity.

Thus, we can conclude that the statement, metalloids have properties that fall between those of metals and nonmetals, is true about metalloids.

a:

by the combination of an unlimited number of elements