Ionic: Swap, drop and reduce, Metal + nonmetal, Contains a polyatomic, Usually solid at room temperature, Conducts electricity when dissolved in water, Dissolves in water, Attraction of oppositely charged ions, Sodium fluoride (NaF), Electronegativity difference over 1.7, Potassium hydroxide, FeCO3, Made of crystals, Magnesium phosphate, Always polar, Aluminum chloride, Covalent: Mono, di, tri, Nonmetal + nonmetal, No polyatomics present, Usually liquid or gas at room temperature, Does not conduct electricity, Usually insoluble in water, Sharing of valence electrons, Nitrogen (N2), Electronegativity difference below 1.7, Carbon dioxide, SiH4, Made of molecules, Nitrogen trihydride (NH3), Can be polar or nonpolar, All diatomic elements,

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