Metals, Metalloids and Nonmetals

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What are metals?

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Metals are elements that are typically shiny, good conductors of heat and electricity, malleable, and ductile. Examples include iron, copper, and gold.

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What are nonmetals?

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Nonmetals are elements that are generally poor conductors of heat and electricity, and they can be gases, liquids, or solids. Examples include oxygen, sulfur, and nitrogen.

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What are metalloids?

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Metalloids are elements that have properties of both metals and nonmetals. They are semiconductors and are used in electronics. Examples include silicon and arsenic.

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What is conductivity?

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Conductivity is the ability of a material to conduct electricity or heat. Metals have high conductivity, while nonmetals have low conductivity.

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What is malleability?

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Malleability is the ability of a material to be shaped or bent without breaking. Metals are usually malleable.

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What is ductility?

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Ductility is the ability of a material to be stretched into a wire. Metals are typically ductile.

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What is an element?

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An element is a pure substance that cannot be broken down into simpler substances by chemical means. Examples include hydrogen, oxygen, and carbon.

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What is a compound?

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A compound is a substance formed when two or more different elements are chemically bonded together. Examples include water (H2O) and carbon dioxide (CO2).

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What is a mixture?

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A mixture is a combination of two or more substances that are not chemically bonded. Examples include air and salad.

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What is the periodic table?

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The periodic table is a chart that organizes all known elements based on their atomic number, electron configuration, and recurring chemical properties.