The strength of dipole interactions are mostly determined by what? The difference in sizes between the two bonded atoms. The difference in electronegativity between the two bonded atoms. The difference in the phase the bonded molecule is in. Highly electronegative atoms like nitrogen, oxygen and fluorine directly bonded to hydrogen.

The strength of dipole interactions is mostly determined by the difference in electronegativity between the two bonded atoms. Electronegativity is a measure of an atom's ability to attract electrons towards itself in a chemical bond. When two atoms with different electronegativities form a bond, the more electronegative atom will pull the electrons closer to itself, creating a dipole moment. The greater the difference in electronegativity, the stronger the dipole interaction.<br /><br />The difference in sizes between the two bonded atoms can also affect the dipole interaction, but it is not the primary factor. The phase of the bonded molecule (solid, liquid, or gas) does not directly determine the strength of dipole interactions. Highly electronegative atoms like nitrogen, oxygen, and fluorine directly bonded to hydrogen (as in hydrogen bonding) do create strong dipole interactions, but this is a specific case of dipole interactions rather than a general rule.<br /><br />In summary, the strength of dipole interactions is primarily determined by the difference in electronegativity between the two bonded atoms.