166Er-Erbium
166Er has 68 protons and 98 neutrons.
166Er is a stable isotope.
The mass excess of 166Er is -64924.145 with an uncertainty of ±0.334.
The mass was measured using Nuclear Physics and the related equations include:
Influence Equations
95.4% 166Er(n, γ)167Er 1
4.6% 166Ho(β-)166Er 2
Reference
1. 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
2. L. Funke, K. Hohmuth, H. Jungclaussen, K.-H. Kaun, G. Muller, H. Sodan, L. Werner (1963) Decay of 27 Hours 166Ho
Kernenergie 6
https://www.osti.gov/biblio/4695516