Friar, J. L.Martorell Domenech, JuanSprung, Donald W. L.2009-10-062009-10-0619971050-2947https://hdl.handle.net/2445/9560Darwin-Foldy nuclear-size corrections in electronic atoms and nuclear radii are discussed from the nuclear-physics perspective. The interpretation of precise isotope-shift measurements is formalism dependent, and care must be exercised in interpreting these results and those obtained from relativistic electron scattering from nuclei. We strongly advocate that the entire nuclear-charge operator be used in calculating nuclear-size corrections in atoms rather than relegating portions of it to the nonradiative recoil corrections. A preliminary examination of the intrinsic deuteron radius obtained from isotope-shift measurements suggests the presence of small meson-exchange currents (exotic binding contributions of relativistic order) in the nuclear charge operator, which contribute approximately 1/2%.8 p.application/pdfeng(c) The American Physical Society, 1997Estructura electrònicaTeoria atòmicaElectronic structureAtomic theoryinfo:eu-repo/semantics/article181564info:eu-repo/semantics/openAccess