View source for Template:Infobox roentgenium

{{Infobox element
| check      =2nd look
| checknote1 =removed isotope refs from Infobox Rg; see live main iso box.
| checknote2 =fixed ref names:"Hofmann2016-EXON-Remarks" different from "Hofmann2016-Review"; and no red refs in 2 articles, 2 templates.
|number=111
|symbol=Rg
|name=roentgenium
|abundance=
|abundance in earth's crust=
|abundance in oceans=
|abundance in solar system=
|left=[[darmstadtium]]
|right=[[copernicium]]
|above=[[gold|Au]]
|below=(Uhp)
|appearance=
|mass number comment=(unconfirmed: 286)
|electrons per shell=2, 8, 18, 32, 32, 17, 2
|electrons per shell comment=''(predicted)''
|phase=solid
|phase comment=''(predicted)''<ref name=bcc/>
|density gpcm3nrt=22–24
|density gpcm3nrt comment=''(predicted)''<ref name=density>{{cite journal |last1=Gyanchandani |first1=Jyoti |last2=Sikka |first2=S. K. |title=Physical properties of the 6 d -series elements from density functional theory: Close similarity to lighter transition metals |journal=Physical Review B |date=10 May 2011 |volume=83 |issue=17 |pages=172101 |doi=10.1103/PhysRevB.83.172101 |bibcode=2011PhRvB..83q2101G }}</ref><ref name=kratz>{{cite book |last1=Kratz |last2=Lieser |title=Nuclear and Radiochemistry: Fundamentals and Applications |date=2013 |page=631 |edition=3rd}}</ref>
|crystal structure=body-centered cubic
|crystal structure comment=''(predicted)''<ref name=bcc>{{cite journal|doi=10.1103/PhysRevB.84.113104|title=First-principles calculation of the structural stability of 6d transition metals|year=2011|last1=Östlin|first1=A.|last2=Vitos|first2=L.|journal=Physical Review B|volume=84|issue=11|page=113104|bibcode=2011PhRvB..84k3104O }}</ref>
|number of ionization energies=5
|ionization energy 1=1020
|ionization energy 2=2070
|ionization energy 3=3080
|ionization energy comment=''(all estimated)''<ref name=Haire/>
|atomic radius=138
|atomic radius comment=''(predicted)''<ref name=Haire/>{{Fricke1975}}
|covalent radius=121
|covalent radius comment=''(estimated)''<ref name=rsc>[http://www.rsc.org/periodic-table/element/111/roentgenium Chemical Data. Roentgenium - Rg], Royal Chemical Society</ref>
|CAS number=54386-24-2
|magnetic susceptibility=
|magnetic susceptibility ref=
|isotopes=

{{infobox element/isotopes decay2 | mn=279 | sym=Rg | na=syn | hl=90&nbsp;ms
 | dm1=α (87%) | de1=10.37 | link1=meitnerium-275 | pn1=275 | ps1=Mt
 | dm2=SF (13%) |pn2= |ps2=}}

{{infobox element/isotopes decay | mn=280 | sym=Rg | na=syn | hl=3.9&nbsp;s | dm=α | de=9.75 | link1=meitnerium-276 | pn=276 | ps=Mt}}

{{infobox element/isotopes decay2 | mn=281 | sym=Rg | na=syn | hl=11&nbsp;s
 | dm1=[[spontaneous fission|SF]] (86%) | de1= | pn1= | ps1=
 | dm2=α (14%) | de2= | link2=meitnerium-277 | pn2=277 | ps2=Mt}}

{{infobox element/isotopes decay | mn=282 | sym=Rg | na=syn | hl=100&nbsp;s
 | dm=α | de=9.00 | link1=meitnerium-278 | pn=278 | ps=Mt}}

{{infobox element/isotopes decay | mn=283 | sym=Rg | na=syn | hl=5.1&nbsp;min?
 | dm=SF | de= | link1= |pn= |ps=}}

{{infobox element/isotopes decay | mn=286 | sym=Rg | na=[[synthetic radioisotope|syn]] |hl=10.7&nbsp;min?
 | dm=[[alpha decay|α]] |de=8.63 |link1=meitnerium-282 |pn=282 |ps=Mt}}

|naming=after [[Wilhelm Röntgen]]
|discovered by=[[Gesellschaft für Schwerionenforschung]]
|discovery date=1994
|QID=Q1272
}}<noinclude>
{{Infobox element/element navigation|symbol=Rg}}
{{Template reference list}}
{{documentation|1=Template:Infobox element/doc}}
</noinclude>