2017/11/01 by Wojciech Grochala · 5 citations
Chemistry · Physics and Astronomy · #Inorganic Fluorides and Related Compounds #Advanced Chemical Physics Studies #History and advancements in chemistry
paper · pdf · doi:10.1007/s10698-017-9302-7
openalex publication_date 2017/11/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/31
Helium and neon, the two lightest noble gases, have been traditionally positioned by IUPAC in the Group 18 of the Periodic Table of Elements, together with argon, and other unreactive or moderately reactive gaseous elements (krypton, xenon, radon), and oganesson. In this account we revive the old discussion on the possible placement of helium in the Group 2, while preserving the position of neon in Group 18. We provide quantum-chemical arguments for such scenario—as well as other qualitative and quantitative arguments—and we describe previous suggestions in the literature which support it or put it into question. To this author’s own taste, He should be placed in Group 2.