Isotopes of oganesson

Isotopes of oganesson (118Og)
Main isotopes Decay
abun­dance half-life (t1/2) mode pro­duct
294Og synth 0.7 ms α 290Lv
SF

Oganesson (118Og) is a synthetic element created in particle accelerators, and thus a standard atomic weight cannot be given. Like all synthetic elements, it has no stable isotopes. The first and only isotope to be synthesized was 294Og in 2002 and 2005; it has a half-life of 0.7 milliseconds.