Discovery of the silver isotopes

Current status and future potential of nuclide discoveries

“…Although not impossible it is unlikely that further nuclides will exist for which characteristic resonance parameters can be measured. 63 Se not measured 35 68 Br not measured, but 69 Br unbound 36 68 Kr not measured 37 72 Rb not measured, but 73 Rb unbound 38 72 Sr not measured 39 75 Y not measured 40 77 Zr not measured 41 81 Nb Z. Janas 1999 GANIL [150] 42 82 Mo not measured 43 85 Tc Z. Janas 1999 GANIL [150] For neutron rich nuclei characteristic properties of at least two isotopes beyond the neutron dripline have been identified for the lightest elements, hydrogen, helium and lithium. Neutron rich nuclides between beryllium and magnesium which have been shown or expected to be unbound but have not been observed are listed in Table 5.…”

2015 Update of the discoveries of nuclides

“…In 1984, Hencheck et al observed a few events for 77 Y, 79 Zr, 81 Nb, 85 Tc, 87 Ru, 91 Pd, and 93 Ag, stating: "Although these events all satisfy the stringent gating requirements mentioned above, we do not wish to state that such few events constitute proof that these nuclei were identified for the first time in this experiment as they could, at that level, be the result of 'contamination' from neighboring peaks in the Z and Q spectra". 49 While in one of the first Atomic Data Nuclear Data Tables articles the observation of 93 Ag was accepted, 50 later on the observation of the other isotopes was not accepted. 51,52 Since Janas et al demonstrated in 1999 that 81 Nb and 85 Tc were unbound 53 the observation of all isotopes mentioned by Hencheck et al above should be questioned.…”

Discovery of the cobalt isotopes

“…The next paper in the series of the discovery of isotopes [1,2,3,4,5,6,7,8,9,10], the discovery of the cobalt isotopes is discussed. The purpose of this series is to document and summarize the discovery of the isotopes.…”