Use the highlighted square in the period 3 excerpt. Which class is the highlighted element?

An element sample is a dull solid that shatters when tapped and does not let an electric current pass through. Which class best fits it?

Oxygen is found in group 16 near the upper right of the periodic table. How is oxygen classified?

How is the highlighted element in the periodic-table excerpt classified?

A lab strip of an element is shiny, bends into shape, and conducts a circuit. What class is most likely?

Iron is a transition element in the center block of the periodic table. Which class is iron?

What class are the highlighted elements in the excerpt?

A gray solid conducts electricity only moderately, and its conductivity improves when small amounts of another element are added. Which class is this behavior typical of?

Carbon appears in group 14 above silicon. Which class is carbon usually placed in?

Look at the highlighted square in group 17. Which class is that element?

A pure element can be pulled into a thin wire and carries current through that wire. Which classification matches those properties?

Arsenic sits along the staircase line on many periodic tables. What is its classification?

The group 2 excerpt has one element highlighted. Which broad class is it?

A yellow solid is brittle and does not conduct electricity in a simple circuit. Which class is the best match?

Calcium is in group 2 of the periodic table. Which class is calcium?

What class is represented by the highlighted squares in the excerpt?

A solid element has both metallic and nonmetallic behavior and is useful in computer chips because it can act as a semiconductor. Which class fits?

Bromine is a halogen in group 17. Which broad class does bromine belong to?

Use the staircase excerpt to identify the class of the highlighted element.

Which class usually transfers thermal energy quickly through a solid sample?

Copper is in the d-block of the periodic table and is used in electrical wiring. How is copper classified?

Which class do the highlighted period 2 squares belong to?

A piece of an element is used as an electrical insulator rather than a conductor. Which class is most likely?

Silicon is used in solar cells and computer chips because of its intermediate conductivity. Which class is silicon?

A square in the period 3 excerpt is highlighted. Which class is that element?

A brittle element has a shiny surface and conducts well enough for semiconductor devices but not as well as copper. Which class is most likely?

Neon is a noble gas in group 18. Which class is neon?

One square on the staircase excerpt is highlighted. What class is that element?

When hammered, a sample flattens into a sheet instead of crumbling. It also has a bright luster. What class is it?

Tellurium is located near iodine and antimony on the staircase region. Which class is tellurium?

What class are the highlighted period 3 squares?

An element is neither a good conductor nor a strong insulator; its behavior falls between those extremes. Which class is it?

Potassium is an alkali element in group 1. What is its broad classification?

Use the highlighted square in the group 1 excerpt. Which broad class is it?

At room temperature, a pure element exists as a gas and is a poor conductor of electricity. Which class is most consistent?

Antimony is element 51, located between tin and tellurium in period 5. Which class is antimony?

Germanium sits just below silicon in group 14 and was used to make the first transistors. Which class is germanium?

A solid element is a good conductor, can be rolled into foil, and can be stretched into wire. Which class matches?

In chemical reactions, an element tends to gain electrons and form negative ions. Which class is it most likely?

Which of the three classes contains the fewest elements on the periodic table?