Element 118: The first rare gas with an electron affinity

Ephraim Eliav, Uzi Kaldor, Yasuyuki Ishikawa, Pekka Pyykkö

Research output: Contribution to journalArticlepeer-review


The electron affinity of the rare gas element 118 is calculated by the relativistic coupled cluster method based on the Dirac-Coulomb-Breit Hamiltonian. A large basis set (34s26p20d14f9g6h4i) of Gaussian-type orbitals is used. The external 40 electrons are correlated. Inclusion of both relativity and correlation yields an electron affinity of 0.056 eV, with an estimated error of 0.01 eV. Nonrelativistic or uncorrelated calculations give no electron affinity for the atom.

Original languageEnglish
Pages (from-to)5350-5352
Number of pages3
JournalPhysical Review Letters
Issue number27
StatePublished - 1996


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