ON THE PLACEMENT OF HYDROGEN AND HELIUM IN THE PERIODIC SYSTEM: A COMMENT.
| Autor: | Cvetković, Julijana1, Petruševski, Vladimir M.1 vladimirpetrusevski@yahoo.com |
|---|---|
| Zdroj: | Chemistry. Bulgarian Journal of Chemical Education. 2017, Vol. 26 Issue 2, p167-170. 4p. |
| Databáze: | Academic Search Ultimate |
| Externí odkaz: |
|