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13 Cards in this Set
- Front
- Back
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Ionic Bond
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The electrostatic attraction between ions of opposite charge
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Covalent Bond
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A bond characterized by the sharing of one or more pairs of electrons between two atoms
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Molecule
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A neutral group of atoms held together by covalent bonds{a neutral particle formed by neutral atoms} (Ex: H2O is a --?-- because it is formed from H and O which are neutral atoms- not ions)
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Oxidation Number
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The apparent charge on an atom if the electrons in a compound are assigned according to established rules{the charge on an atom. Results from an atom gaining or losing electrons}
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Binary Compounds
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A compound composed of only two types of elements
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Chemical Symbol
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A notation using one to three letters to represent an element. (Ex: C represents carbon)
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Chemical Formula
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The notation using symbols and numbers to represent the composition of a compound. (Ex: NaCl represents sodium chloride)
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Subscript
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The number in a formula that represents how many atoms are present. (Ex: H2O, 2 is the --?-- and it tells you that there are 2 hydrogen atoms present)
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Coefficient
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The number before a formula that tells you how many units or molecules of the formula are present. (Ex: 3 H2O, 3 is the --?--and it tells you that there are 3 water molecules present)
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Polyatomic Ion
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An ion composed of more than 1 atom
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Monatomic Ion
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An ion composed of 1 atom
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Cation
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A positively charged ion
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Anion
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A negatively charged ion
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