Physicists using the Advanced Rare Isotope Separator (ARIS) at the Facility for Rare Isotope Beams (FRIB) have produced, separated, and identified five previously unknown isotopes: thulium-182, thulium-183, ytterbium-186, ytterbium-187 and lutetium-190. These new isotopes show that FRIB is nearing the creation of nuclear specimens that currently only exist when ultradense celestial bodies known as neutron stars crash into each other.
Region of the nuclear chart, 69
Source : Breaking Science News