Types of chemical bonds

Chemical bond: a mutual attraction between nuclei and valence electrons of two different atoms that bing them together (3 major types: ionic, covalent, and metallic).


Bonding lowers potential energy which is high in individual atoms (low potential energy= stable).

Characteristics of an ionic bond: crystallized appearance, it dissolves in water, it wouldn't melt when put over a Bunsen burner flame, doesn't conduct as a solid but conducts electricity as liquid or dissolved in water.

Ionic-> Metal+nonmetal

Covalent-> Nonmetal+nonmetal

Characteristics of covalent bonds: sometimes it dissolves in water other times it doesn't, it would melt underneath a Bunsen burner, it never conducts electricity, and has a granular powdery appearance.

Polar (pure)- unequal electrical charge distribution (one atom negative, one atom positive)

Non-polar- electrons equally shared/ distributed

Metallic-> metallic+metallic

Characteristics of metallic bonds: it has a shiny appearance, it will not dissolve in water, it has a high melting point, always conducts electricity.

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