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10 Cards in this Set
- Front
- Back
Molecule
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when 2 or more atoms share electrons
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Compound
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a substance that contains 2 or more different elements
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Ionic Bonds
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when opposite charges ions are attached to each other
ex: NaCl |
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Ions
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an atom that has gained or lost electrons & becomes (+) or (-) charged
ex: Na+, Cl- |
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Cations
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a + charged ion
ex: na+ |
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Anions
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a - charged ion
ex: cl- |
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Covalent Bonds
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when 2 or more atoms share electrons, much stronger that ionis bonds
ex: H2O |
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Nonpolar Covalent Bonds
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2 atoms share electrons equally
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Polar Covalent Bonds
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1 atom attracts the shared electron more, causes partial (+)& (-) ends
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Hydrogen Bonds
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surface tension, water forms polar bonds, H is attracted to neighboring atoms
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