'S e eileamaid cheimigeach a tha ann am roentgenium le samhla Rg agus àireamh atamach 111.

Roentgenium
Roentgen2.jpg
Wilhelm Röntgen
Clàr pillteach
HHe
LiBeBCNOFNe
NaMgAlSiPSClAr
KCaScTiVCrMnFeCoNiCuZnGaGeAsSeBrKr
RbSrYZrNbMoTcRuRhPdAgCdInSnSbTeIXe
CsBa*HfTaWReOsIrPtAuHgTlPbBiPoAtRn
FrRa**RfDbSgBhHsMtDsRgCnNhFlMcLvTsOg
*LaCePrNdPmSmEuGdTbDyHoErTmYbLu
**AcThPaUNpPuAmCmBkCfEsFmMdNoLr
Buadhan
SamhlaRg
Àireamh111
Buidheann11
Ùine7
Blocad
SeòrsaMeatailtean trastach
Buadhan stuthach
DathChan eil fhios againn
Buadhan atamach
Tomad atamach/Da(281) Chan eil e seasmhach[1]

'S e meatailt trastach glè rèidio-bheò agus fuadain a tha ann.

Rinneadh caractarachd ri 7 iosatòpaichean de roentgenium. Tha 282Rg, le leth-bheatha 2.1 mionaidean, as seasmhaiche.[2]

Eachdraidh

Ann an 1994 rinn an sgioba Sigurd Hofmann aig an Comann airson Rannsachadh nan Aidheon Trom ann an Darmstadt ataman roentgenium. Bhuail iad niùclasan biosmat-209 le niùclasan niceal-64 agus rinn iad 272Rg.

Chaidh iad ainmicheadh air Wilhelm Röntgen, neach-saidheans a lorg gathan-X.[3]

Cleachdadh

Tha roentgenium glè thearc agus chan eil cleachdaidhean ann.

Iomraidhean

  1. http://www.ciaaw.org/atomic-weights.htm
  2. http://dx.doi.org/10.1103/PhysRevLett.112.172501
  3. Corish, J. ⁊ Rosenblatt, G. M. (2004): “Name and symbol of the element with atomic number 111 (IUPAC Recommendations 2004),” ann an: Pure Appl. Chem., leabhar 76, td. 2101–2103.

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