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22 Cards in this Set
- Front
- Back
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alloy
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mix of elements that has metallic properties
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anion
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NEGATIVEly
charged ion |
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cation
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POSITVEly
charged ion |
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Covalent bond
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chemical bond that results in sharing of valence electrons
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delocalized electrons
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electrons in a metallic bond that moves freely
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electrolyte
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ionic compound
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electron sea model
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all metal atoms in a metallic solid contribute their valence electrons to make a sea of electrons
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ENDOthermic reaction
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ABSORBS heat
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EXOthermic reaction
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RELEASES heat
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formula unit
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simplest ratio of ions rep. in an ionic compound
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hybridization
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process of re-arranging the valence electrons of an atom to form 4 new identical orbitals.
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IONIC bond:
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holds OPPOSITEly charged ions together
to from ionic compounds |
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lattice energy
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energy needed to seperate 1 mole of ions in an ionic compound
directly relates to size & charge of ions |
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lewis structure
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uses electron-dot structures to rep. how electrons are arranged in molecules
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metallic bond
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attraction of a metallic cation (+) for a delocalized electron
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molecule
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forms when 2+ atoms covalently bond (they share electrons)
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polar covalent bond:
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chem bond that forms when electrons aren’t shared equally
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polyatomic ion
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ion made up of atoms that act as 1 unit w. a net charge
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resonance
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happens when
there is 1+ Lewis Dot structure for a molecule |
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VSEPR model
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Valance Shell Electron Pair Repulsion; based on arrangement that min. repulsion
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activated complex
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transition state;
unstable atoms that re-form quickly |
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activation energy
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energy req. to make reaction occur
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