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Noun edit

fermium gap (uncountable)

  1. (nuclear physics) The phenomenon that elements beyond fermium cannot be synthesized by neutron bombardment, due to the very short spontaneous fission half-life of fermium-258.[1]

References edit

  1. ^ PDF, Future of Superheavy Element Research: Which Nuclei Could be Synthesized within the Next Few Years?. By Zagrebaev, Valeriy; Karpov, Alexander; Greiner, Walter (2013). Page 11.