Francium (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Francium" in English language version.

Last modified: 18:04:54, 1 June 2026 (UTC)

Ref.Un. Ref.Website

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3023doi.org

2^nd place

219web.archive.org

1^st place

1010adsabs.harvard.edu

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87semanticscholar.org

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8^th place

71chemeducator.org

low place

62books.google.com

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61andyscouse.com

low place

54worldcat.org

4^th place

53sunysb.edu

low place

51ulusofona.pt

low place

51vanderkrogt.net

8,803^rd place

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33arxiv.org

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31iaea.org

1,135^th place

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31acs.org

865^th place

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31archive.org

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22nih.gov

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11iop.org

1,046^th place

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11arhse.com

low place

11archives-ouvertes.fr

1,143^rd place

973^rd place

11hdl.handle.net

66^th place

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11escholarship.org

1,477^th place

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11chemrxiv.org

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11lbl.gov

3,154^th place

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11unt.edu

1,621^st place

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11jlab.org

low place

11jstor.org

23^rd place

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11sciencenews.org

4,656^th place

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11time.com

84^th place

63^rd place

11osti.gov

2,098^th place

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11lanl.gov

5,474^th place

5,230^th place

acs.org (Global: 865^th place; English: 887^th place)

pubs.acs.org

Orozco, Luis A. (2003). "Francium". Chemical and Engineering News. 81 (36): 159. doi:10.1021/cen-v081n036.p159.

adsabs.harvard.edu (Global: 14^th place; English: 9^th place)

ui.adsabs.harvard.edu

Andreev, S.V.; Letokhov, V.S.; Mishin, V.I. (1987). "Laser resonance photoionization spectroscopy of Rydberg levels in Fr". Physical Review Letters. 59 (12): 1274–76. Bibcode:1987PhRvL..59.1274A. doi:10.1103/PhysRevLett.59.1274. PMID 10035190.
Hyde, E. K. (1952). "Radiochemical Methods for the Isolation of Element 87 (Francium)". J. Am. Chem. Soc. 74 (16): 4181–4184. Bibcode:1952JAChS..74.4181H. doi:10.1021/ja01136a066. hdl:2027/mdp.39015086483156. S2CID 95854270.
Peppard, D. F.; Mason, G. W.; Gray, P. R.; Mech, J. F. (1952). "Occurrence of the (4n + 1) series in nature" (PDF). Journal of the American Chemical Society. 74 (23): 6081–6084. Bibcode:1952JAChS..74.6081P. doi:10.1021/ja01143a074.
Belli, P.; Bernabei, R.; Danevich, F. A.; et al. (2019). "Experimental searches for rare alpha and beta decays". European Physical Journal A. 55 (8): 140–1–140–7. arXiv:1908.11458. Bibcode:2019EPJA...55..140B. doi:10.1140/epja/i2019-12823-2. ISSN 1434-601X. S2CID 201664098.
Belli, P.; Bernabei, R.; Cappella, C.; Caracciolo, V.; Cerulli, R.; Danevich, F.A.; Di Marco, A.; Incicchitti, A.; Poda, D.V.; Polischuk, O.G.; Tretyak, V.I. (2014). "Investigation of rare nuclear decays with BaF₂ crystal scintillator contaminated by radium". European Physical Journal A. 50 (9): 134–143. arXiv:1407.5844. Bibcode:2014EPJA...50..134B. doi:10.1140/epja/i2014-14134-6. S2CID 118513731.
Haverlock, T. J.; Mirzadeh, S.; Moyer, B. A. (2003). "Selectivity of calix[4]arene-bis(benzocrown-6) in the complexation and transport of francium ion". J Am Chem Soc. 125 (5): 1126–7. Bibcode:2003JAChS.125.1126H. doi:10.1021/ja0255251. PMID 12553788.
Gomez, E.; Orozco, L A; Sprouse, G D (November 7, 2005). "Spectroscopy with trapped francium: advances and perspectives for weak interaction studies". Rep. Prog. Phys. 69 (1): 79–118. Bibcode:2006RPPh...69...79G. doi:10.1088/0034-4885/69/1/R02. S2CID 15917603.
Osika, Yuliya; Meniailava, Darya; Shundalau, Maksim (2024). "Relativistic coupled cluster study on the spectroscopic and radiative properties of the KFr molecule and modeling of the transport properties of potassium–francium dilute gas medium". Journal of Quantitative Spectroscopy and Radiative Transfer. 321 108996. Elsevier BV. Bibcode:2024JQSRT.32108996O. doi:10.1016/j.jqsrt.2024.108996. ISSN 0022-4073.
MacPherson, H. G. (1934). "An Investigation of the Magneto-Optic Method of Chemical Analysis". Physical Review. 47 (4): 310–315. Bibcode:1935PhRv...47..310M. doi:10.1103/PhysRev.47.310.
Tandecki, M; Zhang, J.; Collister, R.; Aubin, S.; Behr, J. A.; Gomez, E.; Gwinner, G.; Orozco, L. A.; Pearson, M. R. (2013). "Commissioning of the Francium Trapping Facility at TRIUMF". Journal of Instrumentation. 8 (12) 12006. arXiv:1312.3562. Bibcode:2013JInst...8P2006T. doi:10.1088/1748-0221/8/12/P12006. S2CID 15501597.

andyscouse.com (Global: low place; English: low place)

Price, Andy (December 20, 2004). "Francium". Retrieved February 19, 2012.

archive.org (Global: 6^th place; English: 6^th place)

"Francium". McGraw-Hill Encyclopedia of Science & Technology. Vol. 7. McGraw-Hill Professional. 2002. pp. 493–494. ISBN 978-0-07-913665-7.

archives-ouvertes.fr (Global: 1,143^rd place; English: 973^rd place)

hal.archives-ouvertes.fr

Perey, M. (October 1, 1939). "L'élément 87: AcK, dérivé de l'actinium". Journal de Physique et le Radium (in French). 10 (10): 435–438. doi:10.1051/jphysrad:019390010010043500. ISSN 0368-3842.

arhse.com (Global: low place; English: low place)

Guruge, Amila Ruwan (January 25, 2023). "Francium". Chemical and Process Engineering. Retrieved February 28, 2023.

arxiv.org (Global: 49^th place; English: 31^st place)

Belli, P.; Bernabei, R.; Danevich, F. A.; et al. (2019). "Experimental searches for rare alpha and beta decays". European Physical Journal A. 55 (8): 140–1–140–7. arXiv:1908.11458. Bibcode:2019EPJA...55..140B. doi:10.1140/epja/i2019-12823-2. ISSN 1434-601X. S2CID 201664098.
Belli, P.; Bernabei, R.; Cappella, C.; Caracciolo, V.; Cerulli, R.; Danevich, F.A.; Di Marco, A.; Incicchitti, A.; Poda, D.V.; Polischuk, O.G.; Tretyak, V.I. (2014). "Investigation of rare nuclear decays with BaF₂ crystal scintillator contaminated by radium". European Physical Journal A. 50 (9): 134–143. arXiv:1407.5844. Bibcode:2014EPJA...50..134B. doi:10.1140/epja/i2014-14134-6. S2CID 118513731.
Tandecki, M; Zhang, J.; Collister, R.; Aubin, S.; Behr, J. A.; Gomez, E.; Gwinner, G.; Orozco, L. A.; Pearson, M. R. (2013). "Commissioning of the Francium Trapping Facility at TRIUMF". Journal of Instrumentation. 8 (12) 12006. arXiv:1312.3562. Bibcode:2013JInst...8P2006T. doi:10.1088/1748-0221/8/12/P12006. S2CID 15501597.

books.google.com (Global: 3^rd place; English: 3^rd place)

Emsley, John (2001). Nature's Building Blocks. Oxford: Oxford University Press. pp. 151–153. ISBN 978-0-19-850341-5.
Krebs, Robert E. (July 30, 2006). The History and Use of Our Earth's Chemical Elements: A Reference Guide. Bloomsbury Publishing USA. ISBN 978-0-313-02798-7.

chemeducator.org (Global: low place; English: low place)

Adloff, Jean-Pierre; Kaufman, George B. (September 25, 2005). Francium (Atomic Number 87), the Last Discovered Natural Element Archived June 4, 2013, at the Wayback Machine . The Chemical Educator 10 (5). Retrieved on March 26, 2007.

chemrxiv.org (Global: low place; English: low place)

Cao, Chang-Su; Hu, Han-Shi; Schwarz, W. H. Eugen; Li, Jun (2022). "Periodic Law of Chemistry Overturns for Superheavy Elements". ChemRxiv (preprint). doi:10.26434/chemrxiv-2022-l798p. Retrieved November 16, 2022.

doi.org (Global: 2^nd place; English: 2^nd place)

Kondev, F. G.; Wang, M.; Huang, W. J.; Naimi, S.; Audi, G. (2021). "The NUBASE2020 evaluation of nuclear properties" (PDF). Chinese Physics C. 45 (3) 030001. doi:10.1088/1674-1137/abddae.
Perey, M. (October 1, 1939). "L'élément 87: AcK, dérivé de l'actinium". Journal de Physique et le Radium (in French). 10 (10): 435–438. doi:10.1051/jphysrad:019390010010043500. ISSN 0368-3842.
Orozco, Luis A. (2003). "Francium". Chemical and Engineering News. 81 (36): 159. doi:10.1021/cen-v081n036.p159.
Kozhitov, L. V.; Kol'tsov, V. B.; Kol'tsov, A. V. (2003). "Evaluation of the Surface Tension of Liquid Francium". Inorganic Materials. 39 (11): 1138–1141. doi:10.1023/A:1027389223381. S2CID 97764887.
Oshchapovskii, V. V. (2014). "A New Method of Calculation of the Melting Temperatures of Crystals of Group 1A Metal Halides and Francium Metal". Russian Journal of Inorganic Chemistry. 59 (6): 561–567. doi:10.1134/S0036023614060163. S2CID 98622837.
Robles-Navarro, Andres; Schwerdtfeger, Peter (2026). "Accurate relativistic density functional calculations for the solid-state of metallic francium". Physical Chemistry Chemical Physics. 28 (11): 6703–6710. doi:10.1039/D5CP04548G. ISSN 1463-9076.
Allred, A. L. (1961). "Electronegativity values from thermochemical data". J. Inorg. Nucl. Chem. 17 (3–4): 215–221. doi:10.1016/0022-1902(61)80142-5.
Andreev, S.V.; Letokhov, V.S.; Mishin, V.I. (1987). "Laser resonance photoionization spectroscopy of Rydberg levels in Fr". Physical Review Letters. 59 (12): 1274–76. Bibcode:1987PhRvL..59.1274A. doi:10.1103/PhysRevLett.59.1274. PMID 10035190.
Thayer, John S. (2010). "Chap.10 Relativistic Effects and the Chemistry of the Heavier Main Group Elements". Relativistic Methods for Chemists. Springer. p. 81. doi:10.1007/978-1-4020-9975-5_2. ISBN 978-1-4020-9975-5.
Hyde, E. K. (1952). "Radiochemical Methods for the Isolation of Element 87 (Francium)". J. Am. Chem. Soc. 74 (16): 4181–4184. Bibcode:1952JAChS..74.4181H. doi:10.1021/ja01136a066. hdl:2027/mdp.39015086483156. S2CID 95854270.
Cao, Chang-Su; Hu, Han-Shi; Schwarz, W. H. Eugen; Li, Jun (2022). "Periodic Law of Chemistry Overturns for Superheavy Elements". ChemRxiv (preprint). doi:10.26434/chemrxiv-2022-l798p. Retrieved November 16, 2022.
Peppard, D. F.; Mason, G. W.; Gray, P. R.; Mech, J. F. (1952). "Occurrence of the (4n + 1) series in nature" (PDF). Journal of the American Chemical Society. 74 (23): 6081–6084. Bibcode:1952JAChS..74.6081P. doi:10.1021/ja01143a074.
Belli, P.; Bernabei, R.; Danevich, F. A.; et al. (2019). "Experimental searches for rare alpha and beta decays". European Physical Journal A. 55 (8): 140–1–140–7. arXiv:1908.11458. Bibcode:2019EPJA...55..140B. doi:10.1140/epja/i2019-12823-2. ISSN 1434-601X. S2CID 201664098.
Wang, Meng; Huang, W.J.; Kondev, F.G.; Audi, G.; Naimi, S. (2021). "The AME 2020 atomic mass evaluation (II). Tables, graphs and references". Chinese Physics C. 45 (3) 030003. doi:10.1088/1674-1137/abddaf.
Belli, P.; Bernabei, R.; Cappella, C.; Caracciolo, V.; Cerulli, R.; Danevich, F.A.; Di Marco, A.; Incicchitti, A.; Poda, D.V.; Polischuk, O.G.; Tretyak, V.I. (2014). "Investigation of rare nuclear decays with BaF₂ crystal scintillator contaminated by radium". European Physical Journal A. 50 (9): 134–143. arXiv:1407.5844. Bibcode:2014EPJA...50..134B. doi:10.1140/epja/i2014-14134-6. S2CID 118513731.
Haverlock, T. J.; Mirzadeh, S.; Moyer, B. A. (2003). "Selectivity of calix[4]arene-bis(benzocrown-6) in the complexation and transport of francium ion". J Am Chem Soc. 125 (5): 1126–7. Bibcode:2003JAChS.125.1126H. doi:10.1021/ja0255251. PMID 12553788.
Gomez, E.; Orozco, L A; Sprouse, G D (November 7, 2005). "Spectroscopy with trapped francium: advances and perspectives for weak interaction studies". Rep. Prog. Phys. 69 (1): 79–118. Bibcode:2006RPPh...69...79G. doi:10.1088/0034-4885/69/1/R02. S2CID 15917603.
Peterson, I. (May 11, 1996). "Creating, cooling, trapping francium atoms" (PDF). Science News. 149 (19): 294. doi:10.2307/3979560. JSTOR 3979560. Archived from the original (PDF) on July 27, 2020. Retrieved September 11, 2001.
Osika, Yuliya; Meniailava, Darya; Shundalau, Maksim (2024). "Relativistic coupled cluster study on the spectroscopic and radiative properties of the KFr molecule and modeling of the transport properties of potassium–francium dilute gas medium". Journal of Quantitative Spectroscopy and Radiative Transfer. 321 108996. Elsevier BV. Bibcode:2024JQSRT.32108996O. doi:10.1016/j.jqsrt.2024.108996. ISSN 0022-4073.
MacPherson, H. G. (1934). "An Investigation of the Magneto-Optic Method of Chemical Analysis". Physical Review. 47 (4): 310–315. Bibcode:1935PhRv...47..310M. doi:10.1103/PhysRev.47.310.
Orozco, Luis A. (September 30, 2014). Project Closeout Report: Francium Trapping Facility at TRIUMF (Report). U.S. Department of Energy. doi:10.2172/1214938. OSTI 1214938.
Tandecki, M; Zhang, J.; Collister, R.; Aubin, S.; Behr, J. A.; Gomez, E.; Gwinner, G.; Orozco, L. A.; Pearson, M. R. (2013). "Commissioning of the Francium Trapping Facility at TRIUMF". Journal of Instrumentation. 8 (12) 12006. arXiv:1312.3562. Bibcode:2013JInst...8P2006T. doi:10.1088/1748-0221/8/12/P12006. S2CID 15501597.
Keller, Cornelius; Wolf, Walter; Shani, Jashovam. "Radionuclides, 2. Radioactive Elements and Artificial Radionuclides". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.o22_o15. ISBN 978-3-527-30673-2.

escholarship.org (Global: 1,477^th place; English: 863^rd place)

Hyde, E. K.; Ghiorso, A.; Seaborg, G. T. (October 10, 1949). Low Mass Francium and Emanation Isotopes of High Alpha Stability (Report). Berkeley, CA: UC Radiation Laboratory. p. 9. UCRL-409.

hdl.handle.net (Global: 66^th place; English: 34^th place)

Hyde, E. K. (1952). "Radiochemical Methods for the Isolation of Element 87 (Francium)". J. Am. Chem. Soc. 74 (16): 4181–4184. Bibcode:1952JAChS..74.4181H. doi:10.1021/ja01136a066. hdl:2027/mdp.39015086483156. S2CID 95854270.

iaea.org (Global: 1,135^th place; English: 1,124^th place)

www-nds.iaea.org

Kondev, F. G.; Wang, M.; Huang, W. J.; Naimi, S.; Audi, G. (2021). "The NUBASE2020 evaluation of nuclear properties" (PDF). Chinese Physics C. 45 (3) 030001. doi:10.1088/1674-1137/abddae.

iop.org (Global: 1,046^th place; English: 1,608^th place)

iopscience.iop.org

ISOLDE Collaboration, J. Phys. B 23, 3511 (1990) (PDF online)

jlab.org (Global: low place; English: low place)

education.jlab.org

Gagnon, Steve. "Francium". Jefferson Science Associates, LLC. Archived from the original on March 31, 2007. Retrieved April 1, 2007.

jstor.org (Global: 23^rd place; English: 15^th place)

Peterson, I. (May 11, 1996). "Creating, cooling, trapping francium atoms" (PDF). Science News. 149 (19): 294. doi:10.2307/3979560. JSTOR 3979560. Archived from the original (PDF) on July 27, 2020. Retrieved September 11, 2001.

lanl.gov (Global: 5,474^th place; English: 5,230^th place)

periodic.lanl.gov

"Francium". Los Alamos National Laboratory. 2011. Retrieved February 19, 2012.

lbl.gov (Global: 3,154^th place; English: 3,216^th place)

ie.lbl.gov

National Nuclear Data Center (1990). "Table of Isotopes decay data". Brookhaven National Laboratory. Archived from the original on October 31, 2006. Retrieved April 4, 2007.

nih.gov (Global: 5^th place; English: 5^th place)

pubmed.ncbi.nlm.nih.gov

Andreev, S.V.; Letokhov, V.S.; Mishin, V.I. (1987). "Laser resonance photoionization spectroscopy of Rydberg levels in Fr". Physical Review Letters. 59 (12): 1274–76. Bibcode:1987PhRvL..59.1274A. doi:10.1103/PhysRevLett.59.1274. PMID 10035190.
Haverlock, T. J.; Mirzadeh, S.; Moyer, B. A. (2003). "Selectivity of calix[4]arene-bis(benzocrown-6) in the complexation and transport of francium ion". J Am Chem Soc. 125 (5): 1126–7. Bibcode:2003JAChS.125.1126H. doi:10.1021/ja0255251. PMID 12553788.

osti.gov (Global: 2,098^th place; English: 1,146^th place)

Orozco, Luis A. (September 30, 2014). Project Closeout Report: Francium Trapping Facility at TRIUMF (Report). U.S. Department of Energy. doi:10.2172/1214938. OSTI 1214938.

sciencenews.org (Global: 4,656^th place; English: 3,908^th place)

Peterson, I. (May 11, 1996). "Creating, cooling, trapping francium atoms" (PDF). Science News. 149 (19): 294. doi:10.2307/3979560. JSTOR 3979560. Archived from the original (PDF) on July 27, 2020. Retrieved September 11, 2001.

semanticscholar.org (Global: 15^th place; English: 8^th place)

api.semanticscholar.org

Kozhitov, L. V.; Kol'tsov, V. B.; Kol'tsov, A. V. (2003). "Evaluation of the Surface Tension of Liquid Francium". Inorganic Materials. 39 (11): 1138–1141. doi:10.1023/A:1027389223381. S2CID 97764887.
Oshchapovskii, V. V. (2014). "A New Method of Calculation of the Melting Temperatures of Crystals of Group 1A Metal Halides and Francium Metal". Russian Journal of Inorganic Chemistry. 59 (6): 561–567. doi:10.1134/S0036023614060163. S2CID 98622837.
Hyde, E. K. (1952). "Radiochemical Methods for the Isolation of Element 87 (Francium)". J. Am. Chem. Soc. 74 (16): 4181–4184. Bibcode:1952JAChS..74.4181H. doi:10.1021/ja01136a066. hdl:2027/mdp.39015086483156. S2CID 95854270.
Belli, P.; Bernabei, R.; Danevich, F. A.; et al. (2019). "Experimental searches for rare alpha and beta decays". European Physical Journal A. 55 (8): 140–1–140–7. arXiv:1908.11458. Bibcode:2019EPJA...55..140B. doi:10.1140/epja/i2019-12823-2. ISSN 1434-601X. S2CID 201664098.
Belli, P.; Bernabei, R.; Cappella, C.; Caracciolo, V.; Cerulli, R.; Danevich, F.A.; Di Marco, A.; Incicchitti, A.; Poda, D.V.; Polischuk, O.G.; Tretyak, V.I. (2014). "Investigation of rare nuclear decays with BaF₂ crystal scintillator contaminated by radium". European Physical Journal A. 50 (9): 134–143. arXiv:1407.5844. Bibcode:2014EPJA...50..134B. doi:10.1140/epja/i2014-14134-6. S2CID 118513731.
Gomez, E.; Orozco, L A; Sprouse, G D (November 7, 2005). "Spectroscopy with trapped francium: advances and perspectives for weak interaction studies". Rep. Prog. Phys. 69 (1): 79–118. Bibcode:2006RPPh...69...79G. doi:10.1088/0034-4885/69/1/R02. S2CID 15917603.
Tandecki, M; Zhang, J.; Collister, R.; Aubin, S.; Behr, J. A.; Gomez, E.; Gwinner, G.; Orozco, L. A.; Pearson, M. R. (2013). "Commissioning of the Francium Trapping Facility at TRIUMF". Journal of Instrumentation. 8 (12) 12006. arXiv:1312.3562. Bibcode:2013JInst...8P2006T. doi:10.1088/1748-0221/8/12/P12006. S2CID 15501597.

sunysb.edu (Global: low place; English: low place)

fr.physics.sunysb.edu

"History". Francium. State University of New York at Stony Brook. February 20, 2007. Archived from the original on May 15, 2008. Retrieved March 26, 2007.
"Cooling and Trapping". Francium. State University of New York at Stony Brook. February 20, 2007. Archived from the original on November 22, 2007. Retrieved May 1, 2007.
"Production of Francium". Francium. State University of New York at Stony Brook. February 20, 2007. Archived from the original on October 12, 2007. Retrieved March 26, 2007.

time.com (Global: 84^th place; English: 63^rd place)

"Alabamine & Virginium". Time. February 15, 1932. Archived from the original on September 30, 2007. Retrieved April 1, 2007.

ulusofona.pt (Global: low place; English: low place)

5ichc-portugal.ulusofona.pt

Fontani, Marco (September 10, 2005). "The Twilight of the Naturally-Occurring Elements: Moldavium (Ml), Sequanium (Sq) and Dor (Do)". International Conference on the History of Chemistry. Lisbon. pp. 1–8. Archived from the original on February 24, 2006. Retrieved April 8, 2007.

unt.edu (Global: 1,621^st place; English: 852^nd place)

digital.library.unt.edu

Peppard, D. F.; Mason, G. W.; Gray, P. R.; Mech, J. F. (1952). "Occurrence of the (4n + 1) series in nature" (PDF). Journal of the American Chemical Society. 74 (23): 6081–6084. Bibcode:1952JAChS..74.6081P. doi:10.1021/ja01143a074.

vanderkrogt.net (Global: 8,803^rd place; English: low place)

elements.vanderkrogt.net

Van der Krogt, Peter (January 10, 2006). "Francium". Elementymology & Elements Multidict. Retrieved April 8, 2007.

web.archive.org (Global: 1^st place; English: 1^st place)

National Nuclear Data Center (1990). "Table of Isotopes decay data". Brookhaven National Laboratory. Archived from the original on October 31, 2006. Retrieved April 4, 2007.
Gagnon, Steve. "Francium". Jefferson Science Associates, LLC. Archived from the original on March 31, 2007. Retrieved April 1, 2007.
Peterson, I. (May 11, 1996). "Creating, cooling, trapping francium atoms" (PDF). Science News. 149 (19): 294. doi:10.2307/3979560. JSTOR 3979560. Archived from the original (PDF) on July 27, 2020. Retrieved September 11, 2001.
Adloff, Jean-Pierre; Kaufman, George B. (September 25, 2005). Francium (Atomic Number 87), the Last Discovered Natural Element Archived June 4, 2013, at the Wayback Machine . The Chemical Educator 10 (5). Retrieved on March 26, 2007.
Fontani, Marco (September 10, 2005). "The Twilight of the Naturally-Occurring Elements: Moldavium (Ml), Sequanium (Sq) and Dor (Do)". International Conference on the History of Chemistry. Lisbon. pp. 1–8. Archived from the original on February 24, 2006. Retrieved April 8, 2007.
"Alabamine & Virginium". Time. February 15, 1932. Archived from the original on September 30, 2007. Retrieved April 1, 2007.
"History". Francium. State University of New York at Stony Brook. February 20, 2007. Archived from the original on May 15, 2008. Retrieved March 26, 2007.
"Cooling and Trapping". Francium. State University of New York at Stony Brook. February 20, 2007. Archived from the original on November 22, 2007. Retrieved May 1, 2007.
"Production of Francium". Francium. State University of New York at Stony Brook. February 20, 2007. Archived from the original on October 12, 2007. Retrieved March 26, 2007.

webelements.com (Global: 4,345^th place; English: low place)

Winter, Mark. "Electron Configuration". Francium. The University of Sheffield. Retrieved April 18, 2007.
Winter, Mark. "Uses". Francium. The University of Sheffield. Retrieved March 25, 2007.

worldcat.org (Global: 4^th place; English: 4^th place)

search.worldcat.org

Perey, M. (October 1, 1939). "L'élément 87: AcK, dérivé de l'actinium". Journal de Physique et le Radium (in French). 10 (10): 435–438. doi:10.1051/jphysrad:019390010010043500. ISSN 0368-3842.
Robles-Navarro, Andres; Schwerdtfeger, Peter (2026). "Accurate relativistic density functional calculations for the solid-state of metallic francium". Physical Chemistry Chemical Physics. 28 (11): 6703–6710. doi:10.1039/D5CP04548G. ISSN 1463-9076.
Belli, P.; Bernabei, R.; Danevich, F. A.; et al. (2019). "Experimental searches for rare alpha and beta decays". European Physical Journal A. 55 (8): 140–1–140–7. arXiv:1908.11458. Bibcode:2019EPJA...55..140B. doi:10.1140/epja/i2019-12823-2. ISSN 1434-601X. S2CID 201664098.
Osika, Yuliya; Meniailava, Darya; Shundalau, Maksim (2024). "Relativistic coupled cluster study on the spectroscopic and radiative properties of the KFr molecule and modeling of the transport properties of potassium–francium dilute gas medium". Journal of Quantitative Spectroscopy and Radiative Transfer. 321 108996. Elsevier BV. Bibcode:2024JQSRT.32108996O. doi:10.1016/j.jqsrt.2024.108996. ISSN 0022-4073.

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