02-24-2021, 06:04 AM
Not really. The continent of stability can in principle supercede the nominal island of stability, as it could start with atomic masses as low as around 300-400 u. For comparison the highest mass isotopes of Tenessine and Oganesson have atomic masses of 294 u, and predictions for heavier elements thought to be on or near the island of stability like unbinilium and unbihexium are thought to be most stable with atomic masses around 320 u.