On the Placement of Hydrogen and Helium in the Periodic System: A Comment

Autor:	Petrusevski, Vlsdimir M., Cvetković, Julijana
Zdroj:	Химия. Природните науки в образованието / Chemistry. Bulgarian Journal of Science Education. 26(2):167-170
Databáze:	Central and Eastern European Online Library (CEEOL)
Externí odkaz:	https://www.ceeol.com/search/article-detail?id=550796 Zobrazit plný text záznamu