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The differences of the masses of nuclear isotopes with atomic numbers between\~10 and ~30 can be described within the chiral soliton approach insatisfactory agreement with data. Rescaling of the model is necessary for thispurpose - decrease of the Skyrme constant by about 30%, providing the "nuclearvariant" of the model. The asymmetric term in Weizsaecker-Bethe- Bacher massformula for nuclei can be obtained as the isospin dependent quantum correctionto the nucleus energy. Some predictions for the binding energies of neutronrich nuclides are made in this way, from, e.g. Be-16 and B-19 to Ne-31 andNa-32. Neutron rich nuclides with high values of isospin are unstable relativeto strong interactions. The SK4 (Skyrme) variant of the model, as well as SK6variant (6-th order term in chiral derivatives in the lagrangian as solitonsstabilizer) are considered, and the rational map approximation is used todescribe multiskyrmions.Comment: 16 pages, 10 tables, 2 figures. Figures are added and few misprints  are removed. Submitted to Phys. Atom. Nucl. (Yad. Fiz.

Mass splittings of nuclear isotopes in chiral solition approach