Latest discovered isotopes
The most recent discoveries of isotopes will be displayed here. These isotopes will be added to the database after the references are entered in the Nuclear Science References database.
14 January 2025
252-Rutherfordium was discovered by Khuyagbaatar et al. at GSI and reported in Physical Review Letters: "Stepping into the Sea of Instability: The New Sub-μs Superheavy Nucleus 252Rf".
17 October 2024
Two neutron-rich silicon isotopes were reported by Yoshimoto et al. from RIKEN. Their article “Discovery of Neutron-Rich Silicon Isotopes 45,46Si” was published in the journal Progress of Theoretical and Experimental Physics.
15 October 2024
Pore et al. discovered 255-Dubnium with the Berkeley Gas-filled Separator (BGS). It was published as a Letter in Physical Review C: "Spontaneous fission of the odd-Z isotope 255Db."
3 October 2024
The first observation of plutonium-227 was published in the Physical Review C article "𝛼 decay of the new isotope 227Pu" by Yang et al. The experiment was performed at the Heavy Ion Research Facility in Lanzhou, China.
12 September 2024
Dronchi et al. reported the discovery of 37-Scandium, 38-Scandium, and 34-Potassium in an experiment performed at the National Superconducting Cyclotron Laboratory. The letter "Evolution of shell gaps in the neutron-poor calcium region from invariant-mass spectroscopy of 37,38Sc, 35Ca, and 34K" was published in Physical Review C.
3 September 2024
The discovery of 21-Aluminum was published in Physical Review C: ”Observation and spectroscopy of the proton-unbound nucleus 21Al” by Kostyleva et al. at the GSI Helmholtzzentrum für Schwerionenforschung in Darmstadt, Germany.
23 August 2024
Kahlbow et al. published the first observation of 30-Fluorine in Physical Review Letters: “Magicity versus Superfluidity around 28O viewed from the Study of 30F.” The experiment was performed at the Radioactive Isotope Beam Factory (RIBF) at RIKEN in Japan.
7 May 2024
The discovery of 275-Darmstadtium at the Superheavy Elements (SHE) factory of the Joint Institute for Nuclear Research in Dubna, Russia was published by Oganessian et al. in the Physical Review C article "Synthesis and decay properties of isotopes of element 110: 273Ds and 275Ds."
9 April 2024
Shimizu et al. reported the first observation of fifteen new isotopes at Radioactive Isotope Beam Factory (RIBF) at RIKEN in Japan. The discovery of copper-84, zinc-86 and 87, gallium-91 and 92, arsenic-93, 94, and 95, selenium-96 and 97, bromine-99 and 100, as well as krypton-103 was published in the Physical Review C article "Production of new neutron-rich isotopes near the N = 60 isotones 92Ge and 93As by in-flight fission of a 345 MeV/nucleon 238U beam."
15 February 2024
The first discovery of isotopes at FRIB was published in Physical Review Letters. Tarasov et al. described the observation of thulium-182 and 183, ytterbium-186 and 187, and lutetium-190 in “Observation of New Isotopes in the Fragmentation of 198Pt at FRIB.”
Additionally, in Physical Review Letters, Yang et al. reported the observation of tungsten-156 and osmium-160 at the Heavy Ion Research Facility in Lanzhou (HIRFL), China: “Discovery of New Isotopes 160Os and 156W: Revealing Enhanced Stability of the N=82 Shell Closure on the Neutron-Deficient Side.” These two isotopes had already been published in November 2023 by Briscoe et al. (see below). However, Yang et al. submitted their paper on 5 July 2023, six days before Briscoe et al. (11 July 2023).
2 February 2024
The discovery of actinium-203 was reported last week by Wang et al. from the Institute of Modern Physics of the Chinese Academy of Science in Lanzhou, China. The article “𝛼-decay properties of new neutron-deficient isotope 203Ac” was published in Physics Letters B.
29 November 2023
Earlier this month, Briscoe et al. reported the first observation of tungsten-156 and osmium-160 at the Accelerator Laboratory of the University of Jyväskylä, Finland, in Physics Letters B: “Decay spectroscopy at the two-proton drip line: Radioactivity of the new nuclides 160Os and 156W.”