What are some examples of ionic compounds?

1 Answer
May 25, 2018

Sodium chloride #NaCl# and magnisium dichloride #MgCl_2#


Ionic compounds can be identified by the difference in electronegativity of each atom. When the difference in electronegativity is #>=2# it would be identified as an ionic bond.
E.g. for sodium chloride which consists of sodium ions and chloride ions. Here the electronegativity of sodium is #0.93# and for Chloride it is #3.16#. We see that:

Giving an ionic bond.

An easy way to see what atoms rather would form ionic bonds is to identify its position in the ptable. If its a metal it would have a low electronegativity and if its an halogen it would have a high electronegativit.