The formation of Rydburg hydrogen is most easily formed from the surfaces of carbon or metal oxide surfaces. These planar clusters have six-fold symmetry and contain 7, 19, 37, 61, or 91 hydrogen atoms. These numbers are the so called magic numbers for closed-pack clusters.
Under the assumption that fusion of these variously sized Rydburg clusters is the basis of the Rossi reaction, this distribution in the number of protons based on magic number could be the mechanism that produces the various light elements found in the nuclear ash of the Rossi reactor.

