II. Kinds of Chemical Bonds Ionic Bond Covalent Bond Comparison Chart

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Presentation transcript:

II. Kinds of Chemical Bonds Ionic Bond Covalent Bond Comparison Chart

A. Ionic Bond Attraction between 2 oppositely charged ions Ions - charged atoms formed by transferring e- from a metal to a nonmetal

A. Ionic Bond ions form a 3-D crystal lattice NaCl

B. Covalent Bond Attraction between neutral atoms formed by sharing e- between two nonmetals

B. Covalent Bond covalent bonds result in discrete molecules NH3 H2O Cl2

B. Covalent Bond Nonpolar Covalent Bond e- are shared equally usually identical atoms

+ - B. Covalent Bond Polar Covalent Bond e- are shared unequally between 2 different atoms results in partial opposite charges + -

B. Covalent Bond Nonpolar Polar Ionic View Bonding Animations.

C. Comparison Chart IONIC COVALENT transferred from metal to nonmetal shared between nonmetals Electrons Melting Point high low Soluble in Water yes usually not yes (solution or liquid) Conduct Electricity no crystal lattice of ions, crystalline solids molecules, odorous liquids & gases Other Properties