Elements and their properties

Elements exist in which form of matter?

all of the above

nonmetal

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

metal

an element that is malleable, polishes to a luster, conducts heat and electricity well, and tends to lose electrons in a chemical reaction

metalloid

an element with properties of both metals and nonmetals

Measuring which physical property is most likely to produce the most precise results when trying to identify a substance?

density

Which of the following would be a good use for a nonmetal?

handle of frying pan

Powdered sulfur and iron filings are mixed together. What physical property could you use to separate them?

magnetism

Which physical property of iron made it popular for use in weapons?

malleability

The physicals properties of a substance can be used to identify the substance, because_____. Select all that apply.

-at any given location, the physical properties of a substance do not change -each substance has a unique set of physical properties

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?

When combined with water, it fizzes.

Match each physical property on the left with its description on the right. -luster -freezing point -density -solubility -ductility -ability to dissolve in another substance -how well a substance flows at a given temperature -ability to be pulled or shaped into wire -temperature at which a liquid becomes a solid -how shiny a material is -mass per unit volume

mass per unit volume-3 -how shiny a material is -1 -temperature at which a liquid becomes a solid -2 -how well a substance flows at a given temperature-4 -ability to dissolve in another substance -5 -ability to be pulled or shaped into wire-6

A material is ductile, conducts electricity, and is magnetic. The material is a _____.

metal

A material you are testing conducts electricity but cannot be pulled into wires. It is most likely a _____.

metalloid

elements

substances with only one type of atom