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Example of Ionic Bond
An ionic bond is a strong bond created by combination of a metal and a non metal. The materials join through electrostatic attraction between positive and negative charges. The metal provides electrons, creating a stable cation configuration, with a reciprocal anion configuration in the non metal. In effect the two materials lock into a mutually supportive configuration as a compound.
Electron configurations of lithium and fluorine. Lithium has one electron in its outer shell, held rather loosely because the ionization energy is low. Fluorine carries 7 electrons in its outer shell. When one electron moves from lithium to fluorine, each ion acquires the noble gas configuration. The bonding energy from the electrostatic attraction of the two oppositely-charged ions has a large enough negative value that the overall bonded state energy is lower than the unbonded state.
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