Term | Definition |
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 |