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Chemistry Chp. 6

TermDefinition
Chemical Bonds bonds rearrange electrons to maximize stability
Octet Rule a full electron shell must have eight electrons
Covalent Bonds bonds formed by sharing electrons ex.) CCl4 , PO43, one or more pairs of shared electrons
Ionic Bonds ions that are held together through attraction of opposite charges ex.) CsI, Na2O, attraction between oppositely charged ionsforms two localized regions of opposite character
ex.) CsI, Na2O, attraction between oppositely charged ions forms two localized regions of opposite character
Metallic Bonds atoms that aren't mobile and aren't associated with any specific nucleus ex.) Fe3 Al, Zn, electron sea theory
ex.) Fe3 Al, Zn, electron sea theory the region that attracts positive nuclei, holding atoms together
Polarity forms two localized regions of opposite character
Electronegativity measure of an atom's ability to attract electrons to itself in a chemical bond
Electrostatic Force the region that attracts positive nuclei, holding atoms together
Lewis Structures 2D diagrams that show bonds between different atoms
Gilbert Lewis researched valence electrons and isotopes
Polyatomic Ion covalently bonded anions
Formula Unit ratio of cations to anions
Crystal Lattice an orderly arrangement of ions
Electron Sea Theory "free electron theory" metals are an extensive crystal lattice of metal cations surrounded by mobile electrons
Delocalized Electrons acts like a glue to hold positively charged metal ions together
Network Covalent Substances atoms covalently bonded into a continuous 3D network
Alloys a mixture of the atoms of a metal with another element witch metallic properties
Created by: reginaanne