Electron scattering is an effective method to study the nuclear structure.
For the odd-A nuclei with proton holes in the outmost orbits, we investigate
the contributions of proton holes to the nuclear quadrupole moments Q and
magnetic moments μ by the multiple Coulomb scattering and magnetic
scattering. The deformed nuclear charge densities are constructed by the
relativistic mean-field (RMF) models. Comparing the theoretical Coulomb and
magnetic form factors with the experimental data, the nuclear quadrupole
moments Q and nuclear magnetic moments μ are investigated. From the
electron scattering, the wave functions of the proton holes of odd-A nuclei
can be tested, which can also reflect the validity of the nuclear structure
model