- You have to overcome the ionic forces of the CsI, the hydrogen bonding of the HF. In return you get ion-dipole forces of the Cs(+) and I(-) in the solution - Dispersion Forces and Metallic bonds Solution - You have to overcome the ionic forces of the CsI, the hydrogen bonding of the HF. In return you get ion-dipole forces of the Cs(+) and I(-) in the solution - Dispersion Forces and Metallic bonds.