imported>DePiep: Undid revision 1075746795 by Vitaium (talk) GF but the ore contains "possibly a few atoms", and the # ppm is unsourced

2022-03-07T14:37:40Z

Undid revision 1075746795 by Vitaium (talk) GF but the ore contains "possibly a few atoms", and the # ppm is unsourced

New page

{{infobox element
|number=87
|symbol=Fr
|name=francium
|abundance=
|abundance in earth's crust=
|abundance in oceans=
|abundance in solar system=
|left=[[radon]]
|right=[[radium]]
|above=[[caesium|Cs]]
|below=([[Ununennium|Uue]])
|appearance=
|electrons per shell=2, 8, 18, 32, 18, 8, 1
|phase=solid
|density gpcm3nrt=2.48
|density gpcm3nrt comment=''(estimated)''<ref name="L&P">{{cite book |title=Analytical Chemistry of Technetium, Promethium, Astatine, and Francium |first1=Avgusta Konstantinovna |last1=Lavrukhina |first2=Aleksandr Aleksandrovich |last2=Pozdnyakov |year=1970 |publisher=Ann Arbor–Humphrey Science Publishers |others=Translated by R. Kondor |isbn=978-0-250-39923-9 |page=269}}</ref>
|melting point K=300
|melting point C=27
|melting point F=81
|melting point comment=
|boiling point K=950
|boiling point C=677
|boiling point F=1251
|boiling point comment=
|heat fusion=
|heat vaporization=
|vapor pressure 1=404
|vapor pressure 10=454
|vapor pressure 100=519
|vapor pressure 1 k=608
|vapor pressure 10 k=738
|vapor pressure 100 k=946
|vapor pressure comment=''(extrapolated)''
|crystal structure=body-centered cubic
|crystal structure comment=''(extrapolated)''
|electronegativity=>0.79
|number of ionization energies=1
|ionization energy 1=393
|ionization energy 1 ref=<ref>ISOLDE Collaboration, J. Phys. B 23, 3511 (1990) ([http://iopscience.iop.org/0953-4075/23/20/014/pdf/0953-4075_23_20_014.pdf PDF online])</ref>
|covalent radius=260
|covalent radius comment=''(extrapolated)''
|Van der Waals radius=348
|Van der Waals radius comment=''(extrapolated)''
|magnetic ordering=Paramagnetic
|electrical resistivity=3
|electrical resistivity unit prefix=µ
|electrical resistivity comment=''(calculated)''
|thermal conductivity=15
|thermal conductivity comment=''(extrapolated)''
|CAS number=7440-73-5
|magnetic susceptibility=
|magnetic susceptibility ref=
|isotopes=
{{infobox element isotopes/isotopes decay2 | mn=212 | sym=Fr
|na=[[synthetic radioisotope|syn]] | hl=20.0 min
|dm1=β+ | link1=radon-212 | pn1=212 | ps1=Rn
|dm2=α | link2=astatine-208 | pn2=208 | ps2=At}}
{{infobox element/isotopes decay | mn=221 | sym=Fr
|na=[[trace radioisotope|trace]] | hl=4.8 min
|dm=[[alpha emission|α]] | de=6.457 | link1=astatine-217 | pn=217 | ps=At}}
{{infobox element/isotopes decay | mn=222 | sym=Fr
|na=[[synthetic radioisotope|syn]] | hl=14.2 min
|dm=[[beta emission|β−]] | de=2.033 | link1=radium-222 | pn=222 | ps=Ra}}
{{infobox element/isotopes decay2 | mn=223 | sym=Fr
|na=trace | hl=22.00 min
|dm1=β− | de1=1.149 | link1=radium-223 | pn1=223 | ps1=Ra
|dm2=α | de2=5.430 | link2=astatine-219 | pn2=219 | ps2=At}}
|isotopes comment=
|naming=after France, homeland of the discoverer
|discovery and first isolation by=[[Marguerite Perey]]
|discovery date=1939
|QID=Q671
}}<noinclude>
{{Infobox element/element navigation|symbol=Fr}}
{{Template reference list}}
{{documentation|1=Template:Infobox element/doc}}
</noinclude>

Template:Infobox francium - Revision history

imported>DePiep: Undid revision 1075746795 by Vitaium (talk) GF but the ore contains "possibly a few atoms", and the # ppm is unsourced