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How was oganesson created in a particle accelerator?
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Oganesson was synthesized by scientists at the Joint Institute for Nuclear Research in Dubna, Russia, using a cyclotron, which is a type of particle accelerator.21
The production process involved a nuclear reaction in which a californium-249 target was bombarded with calcium-48 ions at an energy of 245 million electron volts. This collision resulted in the creation of one atom of oganesson and the release of three neutrons. Because oganesson is highly radioactive and exists for less than a millisecond, it cannot be found in nature and must be produced through these specialized high-energy methods.2