176Yb has 70 protons and 106 neutrons.
176Yb is a stable isotope.
The mass excess of 176Yb is -53491.322 with an uncertainty of ±0.014.
The mass was measured using a Penning Trap and the related equations include:
Influence Equations
73.7% 176Yb-129Xe1.364 1
26.3% 176Yb-132Xe1.333 1
Reference
1. R. Rana, M. Hocker, E.G. Myers (2012) Atomic masses of strontium and ytterbium
Physical Review A 86(5)
https://journals.aps.org/pra/abstract/10.1103/PhysRevA.86.050502