Kr82

Kr82 is a stable isotope of krypton (Kr), an element with atomic number 36. It has a mass number of 82, corresponding to 36 protons and 46 neutrons. Kr82 is one of the six naturally occurring stable isotopes of krypton.

In natural krypton, Kr82 accounts for about 11.6% of the krypton atoms, though the exact fraction can vary slightly between sources. Krypton itself is present in trace amounts in the Earth's atmosphere and in various mineral and gas samples. The isotopic composition of krypton, including Kr82, is typically measured by mass spectrometry in scientific studies.

As a stable nuclide, Kr82 does not undergo radioactive decay and has no half-life. Its value is primarily in contributing to the overall isotopic signature of krypton, which is used in research areas such as atmospheric science, geochemistry, and isotopic dating techniques that involve krypton isotopes, notably Kr-81 dating in groundwater studies. While Kr82 itself is not singled out for a major commercial application, precise knowledge of krypton’s isotopic abundances, including Kr82, is important for interpreting isotopic measurements and for applications that rely on atmospheric and subterranean krypton samples.

See also: krypton, isotopes of krypton, Kr-81 dating.