BMB 207 Lecture Notes - Lecture 26: Ionic Compound, Octet Rule, Ionic Bonding
29 Oct 2016
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Document Summary
Hydrogen and carbon-containing compounds: some hydrogen-containing compounds are named as if they are made of ions, other hydrogen-containing compounds are acids with special names, most carbon compounds are classi ed as organic compounds and follow different iupac rules. Anions and cation are attracted by opposite charges: ions of opposite charge will attract each other to form an ionic compound, cations are written before anions and no ion charge is included in the formula -ex: na+ and. Ionic bonds (really ionic attractions: ionic bonds are formed by the attraction of opposite charges, unlike covalent bonding, there are no shared electrons. Polyvalent ions: atoms can gain or lose more then one electron, atoms with one, two or three valence electrons can satisfy the octet rule by losing all of their valence electrons. Cations and anions: cations: ions that form when atoms lose electrons. Positively charged because the number of protons exceed the number of electrons.
