Yb-174, or Ytterbium-174, is a stable isotope of the element Ytterbium, which has an atomic number of 70. It is one of the several isotopes of ytterbium, and it is notable for its applications in various fields, including materials science and nuclear medicine. This isotope has a mass number of 174, meaning it contains 104 neutrons in its nucleus. Yb-174 is used in research and industrial applications, particularly in the development of lasers and as a dopant in certain types of glass, enhancing their optical properties.