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19 Cards in this Set
- Front
- Back
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Ion
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an atom or group of atoms that carries an electric charges because it has gained or lost electrons
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electrolyte
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substance that conducts an electric current when dissolved in water or when melted
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noble gas configuration
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an arrangement of valence electrons like that found in helium, argon, neon and similar elements
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inter-particle forces
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forces between the particles of a substance
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covalent bond
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the bond formed when two atoms share one or more pairs of electrons with each other
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crystal
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a regular repeating arrangement of atoms, ions, or molecules of a solid
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ionic compound
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a compound that consists of ions
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ionic bond
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the bond formed when one atom transfers one or more electrons to a second atom
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molecule
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the particle formed when two or more atoms are held together by means of covalent bonds
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formula
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shown in a shorthand way the numbers and kinds of elements present in a compound
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octet rule
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according to this principle, an atom is stable when it has eight electrons in its outer energy level
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oxidation number
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charge on an ion
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binary compound
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compound consisting of two elements
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polyatomic ion
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an ion containing more than one element
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hydrate
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the H2O portion of the formula BaCl x H2O
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hygroscopic
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table salt sometimes becomes damp as it absorbs water from the air
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deliquescent
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substance takes up so much water from the air that it forms a liquid solution
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anhydrous
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when hydrated copper sulfate is heated, it loses its water of hydration
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formula unit
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combination of chemical symbols that represent the simplest possible ratio of ions in a compound
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