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Chemistry Chp. 6
| 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 |