What conditions suggest a bond will be ionic?

Answer 1

The difference in electro-negative between the two atoms is below 0.4.

Atoms are both from the nonmetal groups.

Answer 2

it would be ionic bonds,Atoms are from the metal and nonmetal groups.The difference in electronegativity between the two atoms is above 1.7.

Answer 3

If the electronegativity difference between the bonding atoms are more than 1.7 according to Pauling's scale, the bond shows a dominant ionic character.

Answer 4

If the difference in electronegativity between the elements is greater than 2 then the bond will be ionic, if its between 1.6 and 2 then it will be ionic if one of the elements is a metal.

Answer 5

Generally a bond between a metal and a nonmeatal is ionic.