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17 Cards in this Set
- Front
- Back
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Element
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A substance consisting of atoms which all have the same number of protons.
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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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Two or more substances which have been combined such that each substance retains it's own chemical identity.
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Empirical Formula
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A formula that shows the ratio of elements present in the compound.
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Molecular
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An expression which states the H and type of atoms present in a molecule of a substance.
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Ion
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An atom or molecule which had gained or lost 1 or more of its valence electrons, giving it a net positive or negative electrical charge.
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Cation
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An ionic species with a positive charge.
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Anion
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An ionic species having a negative charge.
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Polyatomic
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An ion comprised of two or more atoms.
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Isotype
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Atoms with the same number of protons, but differing numbers of neutrons.
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Atomic Number
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The number of of protons in an element.
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Mass Number
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An integer equal to the sum of the number of protons and neutrons.
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Average atomic mass
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The average mass of atoms of an element.
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Proton
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A component of an atomic nucleus with a mass defined as 1 and a charge of +1.
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Neutron
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The particle in the atomic nucleus with a mass=1 and charge=0.
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Electron
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A negatively charged component of an atom.
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Molar Mass
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The mass of one mole of a substance, usally expressed in grams or kilograms.
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