Elements and their Properties

Nonmetal

An element that is brittle, insulates heat and electricity well, and tends to gain electrons in a chemical reaction.

Which of the following would be good use for a nonmetal? a. handle of frying pan b. electrical wires c. structural components in buildings d. coinage

a. handle of frying pan.

A material is ductile, conducts electricity, and is magnetic. The material is a ___. a. metal b. nonmetal c. metalloid d. impossible to tell

a. metal.

Measuring which physical property is most likely to produce the most precise results when trying to identify a substance? a. luster b. hardness c. density d. viscosity

c. density.

Which physical property of iron made it popular for use in weapons? a. magnetism b. luster c. malleability d. ductility

c. malleability.

A material you are testing conducts electricity but cannot be pulled into wires. It is most likely a ____. a. metal b. nonmetal c. metalloid

c. metalloid.

A friend is trying to describe a material to you. Which of the following is not a description of a physical property of the substance? a. it is red in color b. it is magnetic c. when combined with water, it fizzes d. it melts at 240°c

c. when combined with water, it fizzes.

Elements exist in which form of matter? a. solid b. liquid c. gas d. all of the above

d. all of the above.

Powdered sulfur and iron filings are mixed together. What physical property could you use to separate them? a. luster b. malleability c. ability to conduct electricity d. magnetism

d. magnetism.

Ductility

Ability to be pulled or shaped into wire.

Solubility

Ability to dissolve in another substance.

Metal

An element this is malleable, polishes to a luster, conducts heat and electricity well, and tends to lose electrons in a chemical reaction.

Metalliod

An element with properties of both metals and nonmetals.

Luster

How shiny a material is.

Viscosity

How well a substance flows at a given temperature.

Density

Mass per unit volume.

Elements

Substances with only one type of atom.

Freezing point

Temperature at which a liquid becomes a solid.

True or false. At any given location, the physical properties of a substance do not change.

True.