Krypton Compounds & Isotopes

Although Krypton is naturally chemically nonreactive, krypton difluoride was synthesized in 1963.

It has also been discovered that Krypton can bond with other atoms besides Fluorine, however such compounds are much more unstable than krypton difluoride. For example, KrF₂ can bond with nitrogen when it reacts with [HC≡NH]⁺[AsF−6] under -50°C to form [HC≡N–Kr–F]⁺. There have been other reports of successfully synthesizing additional Krypton compounds, but none have been verified. Krypton has 6 stable isotopes: ⁷⁸Kr, ⁸⁰Kr, ⁸²Kr, ⁸³Kr, ⁸⁴Kr, and ⁸⁶Kr. There are a total of 31 isotopes of Krypton, and the only isotope besides the six given that occur naturally is ⁸¹Kr which is a product of atmospheric reactions between the other natural isotopes.