Answer:
The substance with high electronegativity difference have high melting point.
Step-by-step explanation:
Electronegativity:
It is a measure of the tendency of an atom to attract a bonding pair of electrons.
- Higher the electronegativity higher the potential to attract electron pair.
- So element with high electronegativity difference in elements tend to acquire the partial ions, attracting each other strongly.
- Hence more strong bonds substances would have highest melting points.