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17 Cards in this Set
- Front
- Back
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Atom
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tiny building block of matter, made up of protons, neutrons, and electrons
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Atomic Number
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the number of protons in an atom
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Compound
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atoms of more than one type of element that are chemically bonded together
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Density
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measurement of the mass of an object divided by its volume
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Electron
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particle with a negative charge
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Element
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substance that is made of only one type of atom
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Heterogeneous Mixture
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a mixture which is not mixed evenly and each component retains its own properties
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Homogeneous Mixture
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a mixture which is evenly mixed throughout
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Ion
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electrically-charged atom whose charge results from an atom losing or gaining electrons
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Isotope
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atoms of the same element that have different numbers of neutrons
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Mass Number
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the number of protons plus the number of neutrons in an atom
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Matter
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anything that has mass and takes up space
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Mixture
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composed of two or more substances that are not chemically combined
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Molecule
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a group of atoms connected by covalent bonds
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Neutron
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particle without an electric charge
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Proton
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particle that has a positive electric charge
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Solution
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a mixture which is evenly mixed throughout; also known as a homogeneous mixture
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