Which compound is most likely to contain ionic bonds? which compound is most likely to contain ionic bonds? mgf2 ch4 n2o?

Types of Bonds can be predicted by calculating the difference in electronegativity.

If, Electronegativity difference is,

                Less than 0.4 then it is Non Polar Covalent

                Between 0.4 and 1.7 then it is Polar Covalent 

                Greater than 1.7 then it is Ionic

For MgF₂,

                    E.N of Fluorine              =   3.98

                    E.N of Magnesium        =   1.31

                    E.N Difference                    2.67          (IONIC Bond)

For CH₄,

                    E.N of Carbon            =   2.55

                    E.N of Hydrogen        =   2.20

                    E.N Difference                 0.35     (Non-Polar Covalent Bond)

For N₂O,

                    E.N of Oxygen        =   3.44

                    E.N of Nitrogen       =   3.04

                    E.N Difference              0.40          (Non-Polar Covalent Bond)

Result:

          MgF₂ contains Ionic Bond.

they are all solids.