Roentgenium
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Roentgenium (Cithakan:PronEng, Cithakan:IPA[1]) iku sawijining unsur kimia sajeroning tabel périodik kanthi simbul Rg lan nomer atom 111. Unsur iki kalebu unsur sintètis, sing isotopé sing stabil dhéwé ndarbèni massa 283 lan separo uripé (half life) 10 menit.
Kronologi temon isotop
| Isotop | Taun temon | Réaksi |
|---|---|---|
| 272Rg | 1994 | 209Bi(64Ni,n) |
| 273Rg | ora dimangertèni | |
| 274Rg | 2004 | 209Bi(70Zn,n) [2] |
| 275Rg | ora dimangertèni | |
| 276Rg | ora dimangertèni | |
| 277Rg | ora dimangertèni | |
| 278Rg | 2006 | 237Np(48Ca,3n) [2] |
| 279Rg | 2003 | 243Am(48Ca,4n) [3] |
| 280Rg | 2003 | 243Am(48Ca,3n) [3] |
Pranala njaba
- WebElements.com: Roentgenium
- IUPAC: Proposal of name roentgenium for element 111 Cithakan:Webarchive
- IUPAC: Element 111 is named roentgenium Cithakan:Webarchive
- Apsidium: Roentgenium 111 Cithakan:Webarchive
- Unununium Element At Chemicalelements.com