This is a nuclide chart. Number of Protons on Y axis Number of Neutrons on X axis The chart shows every known element and every known isotope. The proton number determines the element, the neutron number determines the isotope. The colour illustrates the half life of each type of atom, the vast majority of atomic structures decay quickly but the chart shows a spine of stable atoms in assembly-space. There are a few weird features in this data.

let me give a fuck about the things I can unfuck, not give a fuck about the things that are fucked, and tell the fucking difference