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Template:Infobox francium - Revision history
2026-05-03T01:36:41Z
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https://catalog.jinharsh.co.in/index.php?title=Template:Infobox_francium&diff=10243&oldid=prev
setup>Double sharp at 12:16, 31 January 2021
2021-01-31T12:16:09Z
<p></p>
<p><b>New page</b></p><div>{{infobox element<br />
|number=87<br />
|symbol=Fr<br />
|name=francium<br />
|abundance=<br />
|abundance in earth's crust=<br />
|abundance in oceans=<br />
|abundance in solar system=<br />
|left=[[radon]]<br />
|right=[[radium]]<br />
|above=[[caesium|Cs]]<br />
|below=([[Ununennium|Uue]])<br />
|group=1<br />
|period=7<br />
|block=s<br />
|appearance=<br />
|electrons per shell=2, 8, 18, 32, 18, 8, 1<br />
|phase=solid<br />
|density gpcm3nrt=2.48<br />
|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><br />
|melting point K=300<br />
|melting point C=27<br />
|melting point F=81<br />
|melting point comment=<br />
|boiling point K=950<br />
|boiling point C=677<br />
|boiling point F=1251<br />
|boiling point comment=<br />
|heat fusion=<br />
|heat vaporization=<br />
|vapor pressure 1=404<br />
|vapor pressure 10=454<br />
|vapor pressure 100=519<br />
|vapor pressure 1 k=608<br />
|vapor pressure 10 k=738<br />
|vapor pressure 100 k=946<br />
|vapor pressure comment=''(extrapolated)''<br />
|crystal structure=body-centered cubic<br />
|crystal structure comment=''(extrapolated)''<br />
|electronegativity=&gt;0.79<br />
|number of ionization energies=1<br />
|ionization energy 1=393<br />
|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><br />
|covalent radius=260<br />
|covalent radius comment=''(extrapolated)''<br />
|Van der Waals radius=348<br />
|Van der Waals radius comment=''(extrapolated)''<br />
|magnetic ordering=Paramagnetic<br />
|electrical resistivity=3<br />
|electrical resistivity unit prefix=µ<br />
|electrical resistivity comment=''(calculated)''<br />
|thermal conductivity=15<br />
|thermal conductivity comment=''(extrapolated)''<br />
|CAS number=7440-73-5<br />
|magnetic susceptibility=<br />
|magnetic susceptibility ref=<br />
|isotopes=<br />
{{infobox element isotopes/isotopes decay2 | mn=212 | sym=Fr<br />
|na=[[synthetic radioisotope|syn]] | hl=20.0&nbsp;min<br />
|dm1=β<sup>+</sup> | link1=radon-212 | pn1=212 | ps1=Rn<br />
|dm2=α | link2=astatine-208 | pn2=208 | ps2=At}}<br />
{{infobox element/isotopes decay | mn=221 | sym=Fr<br />
|na=[[trace radioisotope|trace]] | hl=4.8&nbsp;min<br />
|dm=[[alpha emission|α]] | de=6.457 | link1=astatine-217 | pn=217 | ps=At}}<br />
{{infobox element/isotopes decay | mn=222 | sym=Fr<br />
|na=[[synthetic radioisotope|syn]] | hl=14.2&nbsp;min<br />
|dm=[[beta emission|β<sup>−</sup>]] | de=2.033 | link1=radium-222 | pn=222 | ps=Ra}}<br />
{{infobox element/isotopes decay2 | mn=223 | sym=Fr<br />
|na=trace | hl=22.00&nbsp;min<br />
|dm1=β<sup>−</sup> | de1=1.149 | link1=radium-223 | pn1=223 | ps1=Ra<br />
|dm2=α | de2=5.430 | link2=astatine-219 | pn2=219 | ps2=At}}<br />
|isotopes comment=<br />
|naming=after France, homeland of the discoverer<br />
|discovery and first isolation by=[[Marguerite Perey]]<br />
|discovery date=1939<br />
|QID=Q671<br />
}}<!--<br />
<br />
--><noinclude><br />
{{Infobox element/element navigation|symbol=Fr}}<br />
{{Template reference list}}<br />
{{documentation|1=Template:Infobox element/doc}}<br />
</noinclude></div>
setup>Double sharp