Isospin impurities in ground states of N = Z nuclei near the proton-drip line

Isospin mixing probabilities in the N = Z nuclei towards the proton drip-line nucleus 100Sn are evaluated using the deformed Hartree-Fock solutions with the Skyrme interaction. The mixing probability is proportional to only slightly lower power in Z than Z83 obtained from the hydrodynamical estimate by Bohr and Mottelson, however, it is larger by a factor of about 2.