Question

F2 and I2 both are covalent compound while f2 is gas and I2 is solid?why ?Give reason

Answer 1

Relative strengths of intemolecular forces of attraction are different.

Explanation:

Yes, both have covalent bonds and have a simple molecular structure. Both also contain the weakest instantaneous dipole induced dipole interactions. However, iodine molecules have a larger number of electrons compared to fluorine molecules and hence a more polarisable electron cloud in `I2` molecules.

This causes the id-id interactions in iodine to be alot stronger than in fluorine molecules, resulting in greater amounts of energy to overcome it making it solid at `r.t.p`