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Francium, Fr, is a radioactive alkali metal element, found in Group Ia of the periodic table. ... Boiling POint : 677 degC; Relative Density : 2.4 ...
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www.ucc.ie/academic/chem/dolchem/html/elem/elem087.html
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Density is defined as mass per unit volume, or density = m/v. So we need to take two measurements for anything we want to find the density for (its mass, and its volume). ... So we cannot find the density of francium until we can isolate a completely pure sample to weigh and measure the volume.
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www.madsci.org/posts/archives/nov99/942610560.Ch.r.html
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Number of Protons/Electrons in Francium : 87; Number of Neutrons in Francium : 136; Crystal Structure: Cubic ; Density @ 293 K; Color of Francium : Unknown...
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www.periodic-table.org.uk/element-francium.htm
www.periodic-table.org.uk/element-francium.htm
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Question: Are there any uses for Francium? terrence i dunn Answer: From the McGraw-Hill Encyclopedia of Science and Tech... Francium only exists in short-lived radioactive forms. ... Based on this information I am willing to guess that Francium is not being used in industry, although it's possible that physicists are using...
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www.newton.dep.anl.gov/askasci/chem99/chem99189.htm
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Atomic number - 87 Density g/mL 1 .87 ... Atomic weight u 223 .0197 Melting point K 300 .2 ... Bonding radius A - Boiling point K 950...
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www.paulbegley.com/periodic/elements/fr.html
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Francium - Wikipedia, the free encyclopedia
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Francium (pronounced /ˈfrænsiəm/ , FRAN -see-əm ), formerly known as eka-caesium and actinium K , is a chemical element that has the symbol Fr and atomic number 87. It has one of...
en.wikipedia.org/wiki/Francium
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This technical report presents and discusses the available data and information on the electrical resistivity of alkali elements (lithium, sodium, potassium, rubidium, cesium, and francium) and contains recommended reference values (or provisional or typical values). ... Accession Number : ADA129037 ... Report Date : JAN 1976...
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stinet.dtic.mil/oai/oai?verb=getRecord&metadataPrefix=h...
stinet.dtic.mil/oai/oai?verb=getRecord&metadataPrefix=html&identifier=ADA129037
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Index of properties of francium within WebElements ... Physics properties: Boiling point; melting point; density; molar volume; thermal conductivity; and electrical resistivity; bulk modulus; critical temperature; superconductivity temperature; hardness (mineralogical, Brinell, and Vickers);
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www.webelements.com/francium/contents.html
www.webelements.com/francium/contents.html
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