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11 Cards in this Set
- Front
- Back
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3 major types of bonding
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ionic, covalent, polar covalent
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what is electornegativity?
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- attraction of electrons
- bigger electronegativity metal the bigger the attraction |
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characteristics of ionic/covalent compounds
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ionic: covalent:
- solid - all 3 states - high boiling point - low - conducts - no conduct - strongest bond - weaker bond - high dissolve - high to low |
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What does the Octet Rule Say?
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atoms will gain or lose electrons to have 8 outermost level electrons
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nonmetals...
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gain electrons
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metals...
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lose electrons
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8
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noble gases
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outermost level electrons
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valence
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The shape of molecules is based on what criteria?
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- # atoms bonded to central atom
- # of lone pairs on central atoms |
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What is Hydrogen Bonding and why is it important?
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H with O, N, F
in ice - more hydrogen bonds which makes volume bigger which makes density less |
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Why does DNA have its structure?
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A + T have 2 places for Hydrogen bonds. C + G have 3 places for Hydrogen bonds.
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