Ionic, electrons are transferred from metal to nonmetal, crystal lattice, solid 1, high melting point, soluble in water 1, electrical conductivity (solution and liquid), cations (positive, lose electrons) + anions (negative, gain electrons), rule: octet + -ide at the end, covalent, electrons are shared between nonmetals, true molecules, liquid or gas, low melting point, usually not soluble, no electrical conductivity, odorous, low boiling point, rule: leftmost element 1st, 2nd ends in -ide, use suffix (no mono on 1st), metallic, electrons are delocalized among metals, electron sea, solid 2, very high melting point, soluble in water 2, conductive in any form, malleable, ductile, lustrous

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