Metals, nonmetals, metalloids

Front

What is a nonmetal?

Back

A nonmetal is an element that typically lacks the characteristics of metals. Nonmetals are usually poor conductors of heat and electricity and can be gases, liquids, or brittle solids at room temperature.

Front

Which element is a nonmetal?

Back

Selenium is a nonmetal.

Front

What are the three categories of elements in the periodic table?

Back

The three categories are metals, nonmetals, and metalloids.

Front

What are the properties of metals?

Back

Metals are typically malleable (can be hammered into thin sheets), ductile (can be drawn into wires), and good conductors of heat and electricity.

Front

What is a metalloid?

Back

A metalloid is an element that has properties of both metals and nonmetals. They are semiconductors, meaning they can conduct electricity better than nonmetals but not as well as metals.

Front

Give an example of a metalloid.

Back

Silicon is an example of a metalloid.

Front

Are nonmetals good conductors of electricity?

Back

No, nonmetals are generally poor conductors of electricity.

Front

What does it mean for a metal to be ductile?

Back

Ductility is the ability of a metal to be stretched into a wire without breaking.

Front

What is the significance of semiconductors?

Back

Semiconductors are important in electronics because they can conduct electricity under certain conditions, making them essential for devices like transistors and diodes.

Front

What is the most common state of nonmetals at room temperature?

Back

Many nonmetals are gases at room temperature, such as oxygen and nitrogen.