Topic 1: Def Flash Cards

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Physical Property

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A characteristic of a substance that can be observed or measured without changing the substance's chemical identity.

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Chemical Property

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A characteristic of a substance that describes its ability to change into different substances.

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Atom

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The basic unit of a chemical element, consisting of a nucleus of protons and neutrons with electrons orbiting this nucleus.

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Element

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A pure substance consisting of only one type of atom.

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Molecule

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A group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.

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Compound

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A substance formed when two or more chemical elements are chemically bonded together.

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Mixture

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A material made up of two or more different substances which are physically combined.

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Mass

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A measure of the amount of matter in an object, typically in kilograms or grams.

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Volume

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The amount of space that a substance or object occupies.

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Weight

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The force exerted on an object due to the acceleration of gravity.