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21 Cards in this Set
- Front
- Back
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Chemical Formula
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chemical shorthand that uses symbols to tell what elements are in a compound and their ratios
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Chemically Stable
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describes an atom whose outer energy level is completely filled with all electrons allowed in that level
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Chemical Bond
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force that holds atoms together in a compound
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Compound
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substance formed from two or more elements in which the exact combination and proportion of elements is always the same
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Ion
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charged particle that has more or fewer electrons that protons
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Ionic Bond
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attraction formed between oppositely charged ions in an ionic compound
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Covalent Bond
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attraction formed between atoms when they share electrons
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Molecule
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a neutral particle that forms as a result of electron sharing
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Polar Molecule
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molecule with a slightly positive end and a slightly negative end as a result of electrons being shared unequally
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Nonpolar Molecule
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molecule that shares electrons equally and does not have oppositely charged ends.
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Binary Compound
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compound that is composed of two elements.
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Oxidation Number
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positive or negative number that indicates how many electrons an atom has gained, lost, or shared to become stable.
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Polyatomic Ion
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positively or negatively charged, covalently bonded group of atoms.
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Hydrate
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Compound that has water chemically attached to its ion and written into its chemical formula.
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Subscript
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Written below
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Superscript
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Written above
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Neutral Compound
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When the compound as a whole is neutral because the sum of the charges on the ions is zero.
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Anhydrous
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Without water
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Metallic Bond
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a bond formed by the attraction between positively charged metal ions and the electrons around them
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Empirical Formula
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the simplest chemical formula of a compound that tells the smallest whole-number ratio of atoms in the compound
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Molecular Formula
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a chemical formula that reports the actual numbers of atoms in one molecule of a compound
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