Do metal atoms have dispersion force?

[protractor]

Homework Statement

Do metal atoms, such as Ti and Na, have London-dispersion force?2. The attempt at a solution
In the textbook by Tro (6th ed), "Since all atoms and molecules have electrons, they all have dispersion forces." But metal atoms are held together by electrostatic forces. I think there might not be any London-dispersion force.

 

[DrDu]

They have. In metals, the dispersion forces are often modeled as those of a liquid of unbound electrons (Fermi liquid). Formally, dispersion forces result from the analysis of the dielectric function of the metals.
The ultimate reference is an article by Dzyaloshinskii:
https://www.tandfonline.com/doi/abs/10.1080/00018736100101281