167Er-Erbium
167Er has 68 protons and 99 neutrons.
167Er is a stable isotope.
The mass excess of 167Er is -63289.256 with an uncertainty of ±0.286.
The mass was measured using a Penning Trap and Nuclear Physics and the related equations include:
Influence Equations
95.8% 167Er(n, γ)168Er 1
3.3% 166Er(n, γ)167Er 2
0.9% 169Tm35Cl-167Er37Cl 3
Reference
1. W. Michaelis, F. Weller, U. Fanger, R. Gaeta, G. Markus, H. Ottmar, H. Schmidt (1970) Band mixing in 167Er
Nuclear Physics A 143(2)
https://www.sciencedirect.com/science/article/pii/0375947470905610
2. L.M. Bollinger, G.E. Thomas (1970) Average-Resonance Method of Neutron-Capture γ-Ray Spectroscopy: States of 106Pd, 156Gd, 158Gd, 166Ho, and 168Er
Physical Review C 2(5)
https://journals.aps.org/prc/abstract/10.1103/PhysRevC.2.1951
3. S. Whineray, J.D. Macdougall, W. McLatchie, H.E. Duckworth (1970) Separation and pairing energies involving isotopes of Tb, Dy, Ho, Er, Tm, Yb, Lu, and Hf
Nuclear Physics A 151(2)
https://www.sciencedirect.com/science/article/pii/0375947470902885