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24 Cards in this Set
- Front
- Back
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chemical bonding |
the force of attraction that holds two atoms together. |
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electrons |
______ are the subatomic particles that are lost, gained, or shared in a chemical reaction. |
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valence |
______ electrons are the electrons found in the highest energy level. |
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ion |
an atom or group of atoms that has an electric charge. |
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polyatomic |
A _______ ion is a group of covalently bonded atoms that act as a unit and has a positive or negative electric charge. |
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Chemical formula |
A combination of symbols that shows the ratio of elements in a compound. |
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ionic metal |
______ bonds form as a result of the attraction between positive and negative ions. This type of bond results from the transfer of electrons from the ______ to the nonmetal. |
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positive |
Metal ions have a _________ charge. |
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negative |
Nonmetal ions have a ______ charge. |
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ionic |
An ______ compound consists of positive and negative ions. |
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Covalent |
A _____ bond results when one or more pairs of electrons are shared between two nonmetal atoms. |
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molecular |
A ________ compound is made up of covalently bonded molecules. |
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polar |
A ______ bond results when electrons are unevenly shared.
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nonpolar |
A _______ bond results when electrons are equally shared. |
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covalent |
When combined, C and O form a ___________ bond. |
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ionic |
When combined, Mg and Cl form an ________ bond. |
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alloy |
a mixture made of two or more elements, at least one of which is metal. |
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stronger and reactive |
Alloys are generally ________ and less ________ than the pure metals from which they are made. |
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metallic |
A _______ bond occurs because the metal ions are attracted to the many electrons surrounding them. |
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poor conductor of electricity |
molecular |
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hard brittle surfaces |
ionic |
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good conductor of heat |
ionic |
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higher boiling points |
ionic |
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lower malting points |
molecular |
