Question

What are some examples of ionic compounds?

Answer 1

Sodium chloride `NaCl` and magnisium dichloride `MgCl_2`

Explanation:

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:
`3.16-0.93=2.23`

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.