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ionic bond

23052012
ionic bond

An ionic bond
is formed when an electron is essentially transferred from one atom of a pair
to the other creating ions. Sodium chloride
is an example of a compound with this type of
bond. These compounds exist as a
crystal lattice with all the ions stacked in definite patterns. The following picture is a representation of
a cubic crystal of sodium chloride. The
chloride ions are represented by the purple spheres.


ionic bond NaCl
Remember
that a cation is a positively charged atom or molecule (one that has lost one
or more electrons) and that an anion is a negatively charged atom or molecule
(one that has gained one or more electrons).
The ions are held together by electrostatic attractions. Ionic compounds have high melting points and many are
soluble
in water.

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