Physicists at the GSI/FAIR accelerator facility have gained insights into the structure of atomic nuclei of fermium, a synthetic chemical element of the actinoid series with atomic number 100. Using laser spectroscopy techniques, they traced the evolution of the nuclear charge radius and found a steady increase as neutrons were added to the nuclei. Fermium isotopes studied by Warbinek et al. are highlighted in this chart. Image credit: S. Raeder. “The...
