The size (radius) and shape (density distribution) are fundamental ground-state properties of atomic nuclei, which are essential inputs for any structure model. I will discuss the following three topics that we are currently studying by electron scattering. 1) proton charge radius, 2) charge radius (and density distribution) of exotic nuclei, 3) neutron-distribution radius of nuclei.
The magic numbers due to closures of the nucleonic shells, that correspond to noble gases in elements, have played a crucial role in nuclear physics. In this talk, we shall discuss our recent invention of a periodic table for atomic nuclei, called "Nucletuch". This is in a sense an extention of the 3D periodic table "Elementouch" invented by Y. Maeno in 2001. While the Elementouch recovers...
