Charge distribution of nuclei affect the electronic charge density?

[hosfa]

As I mentioned, I want to know if the cahrge distribution of nuclei has any influence on electronic properties. And what can cause a change on the nuclear charge distribution!

 

[mfb]

The wavefunctions of electrons (especially s-orbitals) have a non-zero amplitude in the nucleus, so the charge distribution there does influence them. I would expect the strongest (that does not mean "strong"!) effect on the inner electrons of very heavy elements, and negligible effects on outer electrons.
Which "electronic properties" do you mean?

 

[snorkack]

And what can cause a change on the nuclear charge distribution!

Any nucleus with spin over half possesses nonzero quadrupole moment.

What are the effects of the nuclear quadrupole on the electronic properties?