The Meitnerium-278verse, or Mt-278verse, is a small verse that is unique in the radioactive chain. Though the previous verses have a expanding lifespan, this verse a lifespan of 4 seconds (30 times less than the lifespan of Rg-282verse, the previous one). It is filled with the isotope Meitnerium-278. It is the product of the decay of the Rg-282verse, and decays into Bohrium-274verse.

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