Properties and Classification of Matter

Front

What is matter?

Back

Matter is anything that has mass and takes up space.

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What are the three states of matter?

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The three states of matter are solid, liquid, and gas.

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What is an element?

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means.

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What is a compound?

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A compound is a substance formed when two or more elements chemically bond together.

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What is the periodic table?

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The periodic table is a tabular arrangement of elements organized by increasing atomic number.

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What are metals?

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Metals are elements that are typically shiny, good conductors of heat and electricity, and malleable.

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What are nonmetals?

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Nonmetals are elements that are generally poor conductors of heat and electricity and can be gases or brittle solids.

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What are metalloids?

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Metalloids are elements that have properties of both metals and nonmetals.

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What is atomic mass?

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Atomic mass is the weighted average mass of an element's isotopes, measured in atomic mass units (amu).

Front

What is an ion?

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An ion is an atom or molecule that has gained or lost one or more electrons, resulting in a net charge.