10--2-4-6 chem notes.docx - 10-02 Localized Electrons...

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10-02 Localized Electrons Description of the valence electron arrangement in the molecule using Lewis structure Prediction of the geometry of the molecule using valence shell electron-pair repulsion (VSEPR) model Description of the type of atomic orbitals used by the atoms to share electrons or hold lone pairs Chemical bonding Chemical bond o Attractive force holding two or more atoms together Covalent bond o A sharing of electrons between atoms: non-metal/ non- metal bonds Ionic bond o Electrostatic in nature, transfer of electrons from a metal to a nonmetal (cation + anion) Metallic bond o Attractive force holding pure metals together: cations in a “sea” of electrons Two extreme forms of connecting or bonding atoms Ionic bonding o Complete transfer of 1 or more electrons from one atom to another (metals and non- metals) Covalent bonding o Valence electrons shared between atoms (non-metals and non-metals) Most bonds are somewhere in between Ionic bonding
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