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physical property is any property that is measurable and describes a state of a physical system.

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the mass of an atom of a chemical element expressed in atomic mass units

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the number of protons in the nucleus of an atom

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a substance that contains atoms of two or more chemical elements held together by chemical bonds

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any of the four substances air, water, fire, and earth

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A chemical property is any material properties that become evident during or after a chemical reaction

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a subatomic particle of about the same mass as a proton but without an electric charge

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a stable subatomic particle occurring in all atomic nuclei

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Atoms consist of a nucleus made of protons and neutrons orbited by electrons.

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a stable subatomic particle with a charge of negative electricity