Question

question 3
what makes metalloids different from metals and nonmetals?
they are liquids at room temperature
they have both metal and nonmetal properties
they float in water
they only exist in labs
question 4
according to the passage, why do engineers use the periodic table when designi
to weigh all the atoms

Explanation:

Metalloids have properties that are intermediate between metals and non - metals. For example, they can have some metallic luster (like metals) but also be brittle (more like non - metals). They are not liquids at room temperature (most are solids), they do not float in water as a defining characteristic, and they are not only found in labs.

Answer:

They have both metal and nonmetal properties.