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Chapter 8
CHEM 10060 Chapter 8 Definitions
Term | Definition |
---|---|
ionic bond | a chemical bond that results from the electrostatic attraction between a cation and anion - between metals and nonmetals - electron distribution: transferred - particulate view: rays |
covalent bond | - between nonmetals + metalloids - electron distribution: shared - particulate view: close atoms because of shared electrons |
metallic bond | - between metals - electron distribution: delocalized - particulate view: neatly organized arrays |
bond length | the distance between the nuclear centers of two atoms joined in a bond |
delocalized electrons | electrons that are shared among more than two atoms; constitutes to the "sea" in a metallic bond |
octet rule | atoms of most main group elements lose, gains, or share electrons so that each atom has eight valence electrons *H,Be, and B are important exceptions |
bonding capacity | the number of covalent bonds an atom forms to have an octet of electrons in its valence shell |
aldehyde | an organic compound having a carbonyl group with a single bond to a hydrogen atom and a single bond to another atom or group of atoms, designated as R- in the general formula RCHO |