66Zn
66Zn is a stable isotope of zinc with mass number 66. It has 30 protons and 36 neutrons, making it an even-even nucleus. In natural zinc, 66Zn is one of the five stable isotopes, together with 64Zn, 67Zn, 68Zn, and 70Zn. Its atomic mass is about 65.926 u.
Natural abundance and properties. Among natural zinc, 66Zn accounts for roughly a quarter to a little over
Occurrence and production. 66Zn occurs in naturally occurring zinc minerals, such as sphalerite, as part of
Applications and significance. Stable isotopes of zinc, including 66Zn, are used in isotopic ratio mass spectrometry
See also. Zinc, isotopes of zinc, isotopic labeling, isotopic analysis.