Basic Chemistry Concepts

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Atom

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Basic unit of matter. Made of protons, neutrons, and electrons.

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Matter

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Anything that has mass and takes up space.

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Mass

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The amount of material an object has.

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Protons

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A positive charged (+) particle.

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Neutrons

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A particle with no charge.

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Electrons

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A negative charged (-) particle.

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Element

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A pure substance made of one type of atom.

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Periodic Table of Elements

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A chart that organizes all known elements by atomic number.

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Hydrogen Bonds

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The attraction of two hydrogen atoms, one with a negative charge and the other with a positive charge.

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Mixture

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A material of two or more substances that are physically combined.