2001/12/01 by Stephen J. Hawkes · 7 citations
Chemistry · Environmental Science · #Chemistry and Chemical Engineering #History and advancements in chemistry #Various Chemistry Research Topics
paper · doi:10.1021/ed078p1686
openalex publication_date 2001/12/01 · openalex created_date 2022/05/12 · openalex updated_date 2025/11/06
The traditional line that is drawn across the periodic table to separate metals from nonmetals is not a guide to which elements are semimetals. Silicon, boron, and astatine adjoin the line but are nonmetals, while selenium and bismuth, which do not adjoin the line, are semimetals, and polonium, which does adjoin the line, is a metal.