UNSR138 OFFICIAL

unsur 138The following table shows the atomic nuclei that are isotonic (same neutron number N = 81) and isobaric (same nucleon number A = 138) with Lanthanum-138. Naturally occurring isotopesAs of now, Unsur 138 may be a placeholder name for a element that would join the extended periodic table. The atomic number 138 suggests that could possibly are part of the list of