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15 Cards in this Set
- Front
- Back
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Atom
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the smallest particle of an element; the building blocks of matter.
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Electron
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negatively charged particle found outside the nucleus of an atom
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Neutron
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located in the nucleus of an atom, has a neutral charge
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Nucleus
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center of an atom, made up of protons and neutrons held together by a strong force
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Proton
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positively charged particle located in the nucleus of an atom
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Mass
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amount of matter found in something; measured in grams
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Chemical bond
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a force that holds two atoms together.
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Chemical change
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a change in the identity of a substance because of the chemical properties of that substance.
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Chemical property
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any characteristic that gives a substance the ability to be changed into a new substance.
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Chemical reaction
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when a change results from mixing two or more materials. A reaction results in new materials.
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Element
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a substance that cannot be broken down into other substances by chemical or physical means
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Matter
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anything that has mass and occupies space
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Substance
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a single kind of matter that has distinct physical and chemical properties.
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Physical change
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a change in the physical properties but not in its identity.
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Physical property
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any characteristic of a material that can be seen or measured without changing the identity of the material
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