167Er

167Er, or erbium-167, is a stable isotope of the element erbium (symbol Er) with mass number 167. It is one of the naturally occurring isotopes of erbium and contributes to the overall natural isotopic composition of the element.

Natural erbium consists of several stable isotopes, including 162Er, 164Er, 166Er, 167Er, 168Er, and 170Er. Because 167Er is stable, it does not undergo radioactive decay and has no radioactive half-life.

As an odd-mass nucleus, 167Er has nonzero nuclear spin, which affects its magnetic properties and hyperfine interactions in spectroscopy and solid-state measurements. This characteristic can be relevant in applications that rely on precise magnetic or spectroscopic behavior.

In scientific applications, stable isotopes of erbium are used in isotope ratio analysis, materials science, and catalysis. The isotopic composition of erbium, including the proportion of 167Er, is considered in high-precision mass spectrometry calibrations, the study of geochemical processes, and the development of specialized alloys and ceramic materials.

See also: Isotopes of erbium, Erbium.