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12 Cards in this Set
- Front
- Back
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atoms comine to form molecules by
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sharing electrons to form covalent or metallic bonds
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covalent compounds tend to form so that ___
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each atom has an octet of electrons in its highest occupied energy level
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____ involves atoms of nonmetal
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covalent compounds
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the term molecule is used ___
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exclusively for covalent bonding
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what do lewis structures show?
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how valence electrons are arranged among atoms in a molecule
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what do lewis structures reflect?
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the central idea that stability of a compound relates to noble gas electron configuration
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shared electron pairs are _____ ___ and can be represented how?
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covalent bonds ; two dots (:) or by a single line (-)
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hydrogen and halogens form
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one covalent bond
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oxygen and sulfur form
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two covalent bonds
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nitrogen and phosphorus form
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three covalent bonds
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carbon and silicon form
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four covalent bonds
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what occurs when more than one valid lewis structure can be written for a particular molecule?
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resonance
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