Periodiske system (Danish Wikipedia)

Analysis of information sources in references of the Wikipedia article "Periodiske system" in Danish language version.

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34archive.org

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annales.org

"Alexandre-Emile Bélguier de Chancourtois (1820-1886)" (fransk). Annales des Mines history page. Hentet 18. september 2014.

archive.org

Emsley, J. (2011). Nature's Building Blocks: An A-Z Guide to the Elements (New udgave). New York, NY: Oxford University Press. ISBN 978-0-19-960563-7.
Holman, J.; Hill, G. C. (2000). Chemistry in context (5th udgave). Walton-on-Thames: Nelson Thornes. s. 40. ISBN 0-17-448276-0.
Mascetta, J. (2003). Chemistry The Easy Way (4th udgave). New York: Hauppauge. s. 50. ISBN 978-0-7641-1978-1. OCLC 52047235.
Jones, C. (2002). d- and f-block chemistry. New York: J. Wiley & Sons. s. 2. ISBN 978-0-471-22476-1. OCLC 300468713.
Silberberg, M. S. (2006). Chemistry: The molecular nature of matter and change (4th udgave). New York: McGraw-Hill. s. 536. ISBN 0-07-111658-3.
Manson, S. S.; Halford, G. R. (2006). Fatigue and durability of structural materials. Materials Park, Ohio: ASM International. s. 376. ISBN 0-87170-825-6.
Bullinger, H-J. (2009). Technology guide: Principles, applications, trends. Berlin: Springer-Verlag. s. 8. ISBN 978-3-540-88545-0.
Jones, B. W. (2010). Pluto: Sentinel of the outer solar system. Cambridge: Cambridge University Press. s. 169–71. ISBN 978-0-521-19436-5.
Myers, R. (2003). The basics of chemistry. Westport, CT: Greenwood Publishing Group. s. 61–67. ISBN 0-313-31664-3.
Chang, R. (2002). Chemistry (7 udgave). New York: McGraw-Hill. s. 289–310, 340-42. ISBN 0-07-112072-6.
Yoder, C. H.; Suydam, F. H.; Snavely, F. A. (1975). Chemistry (2nd udgave). Harcourt Brace Jovanovich. s. 58. ISBN 0-15-506465-7.
Siegfried, R. (2002). From elements to atoms a history of chemical composition. Philadelphia, Pennsylvania: Library of Congress Cataloging-in-Publication Data. s. 92. ISBN 0-87169-924-9.
Horvitz, L. (2002). Eureka!: Scientific Breakthroughs That Changed The World. New York: John Wiley. s. 43. ISBN 978-0-471-23341-1. OCLC 50766822.
van Spronsen, J. W. (1969). The periodic system of chemical elements. Amsterdam: Elsevier. s. 19. ISBN 0-444-40776-6.
Scerri, E. (2011). The periodic table: A very short introduction. Oxford: Oxford University Press. ISBN 978-0-19-958249-5.
Kaji, M. (2004). "Discovery of the periodic law: Mendeleev and other researchers on element classification in the 1860s". I Rouvray, D. H.; King, R. Bruce (red.). The periodic table: Into the 21st Century. Research Studies Press. s. 91–122 (95). ISBN 0-86380-292-3.
Kauffman, G. B. (marts 1969). "American forerunners of the periodic law". Journal of Chemical Education. 46 (3): 128–135 (132). Bibcode:1969JChEd..46..128K. doi:10.1021/ed046p128.
Pullman, B. (1998). The Atom in the History of Human Thought. Translated by Axel Reisinger. Oxford University Press. s. 227. ISBN 0-19-515040-6.
Deming, H. G. (1923). General chemistry: An elementary survey. New York: J. Wiley & Sons. s. 160, 165.
Clark, R.W.; White, G.D. (2008). "The Flyleaf Periodic Table". Journal of Chemical Education. 85 (4): 497. Bibcode:2008JChEd..85..497C. doi:10.1021/ed085p497.
Myers, R.T.; Oldham, K.B.; S., Tocci (2004). Holt Chemistry. Orlando: Holt, Rinehart and Winston. s. 130. ISBN 0-03-066463-2.
Stewart, P.J. (2008). "The Flyleaf Table: An Alternative". Journal of Chemical Education. 85 (11): 1490. Bibcode:2008JChEd..85.1490S. doi:10.1021/ed085p1490.
Jensen, WB (2008). "The Periodic Table: Facts or Committees?". Journal of Chemical Education. 85 (11): 1491-1492. Bibcode:2008JChEd..85.1491J. doi:10.1021/ed085p1491.2.
Scerri, E. (2013). A Tale of 7 Eelements. Oxford: Oxford University Press. ISBN 978-0-19-539131-2.
Newell, S. B. (2013). Chemistry: An introduction. Boston: Little, Brown and Company. s. 196. ISBN 978-0-19-539131-2.
Mazurs, E.G. (1974). Graphical Representations of the Periodic System During One Hundred Years. Alabama: University of Alabama Press. s. 111. ISBN 978-0-8173-3200-6.
Scerri, E. (2008). "The role of triads in the evolution of the periodic table: Past and present". Journal of Chemical Education. 85 (4): 585–89 (see p.589). Bibcode:2008JChEd..85..585S. doi:10.1021/ed085p585.
Bjorken, J. D.; Drell, S. D. (1964). Relativistic Quantum Mechanics. McGraw-Hill.
Cronyn, M. W. (august 2003). "The Proper Place for Hydrogen in the Periodic Table". Journal of Chemical Education. 80 (8): 947-951. Bibcode:2003JChEd..80..947C. doi:10.1021/ed080p947.
Jensen, W. B. (2008). "Is Mercury Now a Transition Element?". J. Chem. Educ. 85 (9): 1182-1183. Bibcode:2008JChEd..85.1182J. doi:10.1021/ed085p1182.
Rayner-Canham, G; Overton, T (2006). Descriptive inorganic chemistry (4th udgave). New York: W H Freeman. s. 484–485. ISBN 0-7167-8963-9.
Emsley, J. (2011). Nature's Building Blocks (new udgave). Oxford: Oxford University. s. 651. ISBN 978-0-19-960563-7.
William B. Jensen (1982). "The Positions of Lanthanum (Actinium) and Lutetium (Lawrencium) in the Periodic Table". J. Chem. Educ. 59 (8): 634-636. doi:10.1021/ed059p634.
Lavelle, L. (2009). "Response to Misapplying the periodic law". Journal of Chemical Education. 86 (10): 1187. doi:10.1021/ed086p118.

arxiv.org

Samanta, C.; Chowdhury, P. Roy; Basu, D.N. (2007). "Predictions of alpha decay half lives of heavy and superheavy elements". Nucl. Phys. A. 789: 142-154. arXiv:nucl-th/0703086. Bibcode:2007NuPhA.789..142S. doi:10.1016/j.nuclphysa.2007.04.001.

bbc.co.uk

"Chemistry: Four elements added to periodic table". BBC News.

books.google.com

Lewars, Errol G. (2008-12-05). Modeling Marvels: Computational Anticipation of Novel Molecules. Springer Science & Business Media. s. 69-71. ISBN 9781402069734.

britannica.com

Seaborg, G. (c. 2006). "transuranium element (chemical element)". Encyclopædia Britannica. Hentet 16. marts 2010.

chemeducator.org

Adloff, J-P.; Kaufman, G. B. (25. september 2005). "Francium (Atomic Number 87), the Last Discovered Natural Element". The Chemical Educator. Arkiveret fra originalen 4. juni 2013. Hentet 26. marts 2007.

chemistryviews.org

Bradley, D. (20. juli 2011). "At last, a definitive periodic table?". ChemViews Magazine. doi:10.1002/chemv.201000107.

cnn.com

CNN, Ashley Strickland. "New elements on the periodic table are named". CNN. Hentet 2016-06-11.

doi.org

Koppenol, W. H. (2002). "Naming of New Elements (IUPAC Recommendations 2002)" (PDF). Pure and Applied Chemistry. 74 (5): 787-791. doi:10.1351/pac200274050787.
Bagnall, K. W. (1967). "Recent advances in actinide and lanthanide chemistry". I Fields, P.R.; Moeller, T. (red.). Advances in chemistry, Lanthanide/Actinide chemistry. Advances in Chemistry. Vol. 71. American Chemical Society. s. 1-12. doi:10.1021/ba-1967-0071. ISBN 0-8412-0072-6.{{cite book}}: CS1-vedligeholdelse: postscript (link)
Fluck, E. (1988). "New Notations in the Periodic Table" (PDF). Pure Appl. Chem. IUPAC. 60 (3): 431-436. doi:10.1351/pac198860030431. Hentet 24. marts 2012.
Pauling, L. (1932). "The Nature of the Chemical Bond. IV. The Energy of Single Bonds and the Relative Electronegativity of Atoms". Journal of the American Chemical Society. 54 (9): 3570-3582. doi:10.1021/ja01348a011.
Allred, A. L. (1960). "Electronegativity values from thermochemical data". Journal of Inorganic and Nuclear Chemistry. Northwestern University. 17 (3-4): 215-221. doi:10.1016/0022-1902(61)80142-5. Hentet 11. juni 2012.
Aug. Kekulé (1857). "Über die s. g. gepaarten Verbindungen und die Theorie der mehratomigen Radicale". Annalen der Chemie und Pharmacie. 104 (2): 129-150. doi:10.1002/jlac.18571040202.
Brock, W. H.; Knight, D. M. (1965). "The Atomic Debates: 'Memorable and Interesting Evenings in the Life of the Chemical Society'". Isis. The University of Chicago Press. 56 (1): 5-25. doi:10.1086/349922.
Kauffman, G. B. (marts 1969). "American forerunners of the periodic law". Journal of Chemical Education. 46 (3): 128–135 (132). Bibcode:1969JChEd..46..128K. doi:10.1021/ed046p128.
Samanta, C.; Chowdhury, P. Roy; Basu, D.N. (2007). "Predictions of alpha decay half lives of heavy and superheavy elements". Nucl. Phys. A. 789: 142-154. arXiv:nucl-th/0703086. Bibcode:2007NuPhA.789..142S. doi:10.1016/j.nuclphysa.2007.04.001.
Hoffman, D. C.; Lawrence, F. O.; Mewherter, J. L.; Rourke, F. M. (1971). "Detection of Plutonium-244 in Nature". Nature. 234 (5325): 132-134. Bibcode:1971Natur.234..132H. doi:10.1038/234132a0.
Fluck, E (1988). "New notations in the period table". Pure & Applied Chemistry. 60 (3): 431–436 (432). doi:10.1351/pac198860030431.
Clark, R.W.; White, G.D. (2008). "The Flyleaf Periodic Table". Journal of Chemical Education. 85 (4): 497. Bibcode:2008JChEd..85..497C. doi:10.1021/ed085p497.
Stewart, P.J. (2008). "The Flyleaf Table: An Alternative". Journal of Chemical Education. 85 (11): 1490. Bibcode:2008JChEd..85.1490S. doi:10.1021/ed085p1490.
Jensen, WB (2008). "The Periodic Table: Facts or Committees?". Journal of Chemical Education. 85 (11): 1491-1492. Bibcode:2008JChEd..85.1491J. doi:10.1021/ed085p1491.2.
Jensen, W. B. (1982). "Classification, Symmetry and the Periodic Table". Computers & Mathematics with Applications. 12B (1/2): 487–510(498). doi:10.1016/0898-1221(86)90167-7.
Leach, M. R. "Concerning electronegativity as a basic elemental property and why the periodic table is usually represented in its medium form". Foundations of Chemistry. 15 (1): 13-29. doi:10.1007/s10698-012-9151-3.
Bradley, D. (20. juli 2011). "At last, a definitive periodic table?". ChemViews Magazine. doi:10.1002/chemv.201000107.
Scerri, E. (2008). "The role of triads in the evolution of the periodic table: Past and present". Journal of Chemical Education. 85 (4): 585–89 (see p.589). Bibcode:2008JChEd..85..585S. doi:10.1021/ed085p585.
Alper, R. (2010). "The simplified periodic table: elements ordered by their subshells". The Journal of Biological Physics and Chemistry. 10 (2): 74-80. doi:10.4024/43AL09F.jbpc.10.02.
Bent, H. A.; Weinhold, F (2007). "Supporting information: News from the periodic table: An introduction to "Periodicity symbols, tables, and models for higher-order valency and donor–acceptor kinships"". Journal of Chemical Education. 84 (7): 3-4. doi:10.1021/ed084p1145.
Fricke, B.; Greiner, W.; Waber, J. T. (1971). "The continuation of the periodic table up to Z = 172. The chemistry of superheavy elements". Theoretica chimica acta. Springer-Verlag. 21 (3): 235-260. doi:10.1007/BF01172015. Hentet 28. november 2012.
Frazier, K. (1978). "Superheavy Elements". Science News. 113 (15): 236-238. doi:10.2307/3963006. JSTOR 3963006.
Pyykkö, P. (2011). "A suggested periodic table up to Z ≤ 172, based on Dirac–Fock calculations on atoms and ions". Physical Chemistry Chemical Physics. 13 (1): 161-168. Bibcode:2011PCCP...13..161P. doi:10.1039/c0cp01575j. PMID 20967377.
Elliot, Q. A. (1911). "A modification of the periodic table". Journal of the American Chemical Society. 33 (5): 684–688 (688). doi:10.1021/ja02218a004.
Cwiok, S.; Heenen, P.-H.; Nazarewicz, W. (2005). "Shape coexistence and triaxiality in the superheavy nuclei". Nature. 433 (7027): 705-9. Bibcode:2005Natur.433..705C. doi:10.1038/nature03336. PMID 15716943.
Cronyn, M. W. (august 2003). "The Proper Place for Hydrogen in the Periodic Table". Journal of Chemical Education. 80 (8): 947-951. Bibcode:2003JChEd..80..947C. doi:10.1021/ed080p947.
Xuefang, W.; Andrews, L.; Riedel, S.; Kaupp, M (2007). "Mercury Is a Transition Metal: The First Experimental Evidence for HgF₄". Angew. Chem. Int. Ed. 46 (44): 8371-8375. doi:10.1002/anie.200703710. PMID 17899620.
Jensen, W. B. (2008). "Is Mercury Now a Transition Element?". J. Chem. Educ. 85 (9): 1182-1183. Bibcode:2008JChEd..85.1182J. doi:10.1021/ed085p1182.
William B. Jensen (1982). "The Positions of Lanthanum (Actinium) and Lutetium (Lawrencium) in the Periodic Table". J. Chem. Educ. 59 (8): 634-636. doi:10.1021/ed059p634.
Lavelle, L. (2009). "Response to Misapplying the periodic law". Journal of Chemical Education. 86 (10): 1187. doi:10.1021/ed086p118.
Francl, M. (maj 2009). "Table manners" (PDF). Nature Chemistry. 1 (2): 97-98. Bibcode:2009NatCh...1...97F. doi:10.1038/nchem.183. PMID 21378810.

ericscerri.com

Francl, M. (maj 2009). "Table manners" (PDF). Nature Chemistry. 1 (2): 97-98. Bibcode:2009NatCh...1...97F. doi:10.1038/nchem.183. PMID 21378810.

ericscerri23.blogspot.com

Scerri, en af de fremmeste autoriteter på det periodiske systems historie (Sella 2013), foretrak oprindeligt idéen om en optimal form for periodisk system, men har sidenhen skiftet mening og støtter nu værdien ved en pluralitet af periodiske systemer. Se: Sella A. (2013). "An elementary history lesson". New Scientist. 2929, 13 August: 51, accessed 4 September 2013; og Scerri, E. (2013). "Is there an optimal periodic table and other bigger questions in the philosophy of science". 9 August, accessed 4 September 2013.

fieldofscience.com

cultureofchemistry.fieldofscience.com

"Weird Words of Science: Lemniscate Elemental Landscapes". Fields of Science. fieldofscience.com. 22. marts 2009. Hentet 4. januar 2016.

harvard.edu

ui.adsabs.harvard.edu

Kauffman, G. B. (marts 1969). "American forerunners of the periodic law". Journal of Chemical Education. 46 (3): 128–135 (132). Bibcode:1969JChEd..46..128K. doi:10.1021/ed046p128.
Samanta, C.; Chowdhury, P. Roy; Basu, D.N. (2007). "Predictions of alpha decay half lives of heavy and superheavy elements". Nucl. Phys. A. 789: 142-154. arXiv:nucl-th/0703086. Bibcode:2007NuPhA.789..142S. doi:10.1016/j.nuclphysa.2007.04.001.
Hoffman, D. C.; Lawrence, F. O.; Mewherter, J. L.; Rourke, F. M. (1971). "Detection of Plutonium-244 in Nature". Nature. 234 (5325): 132-134. Bibcode:1971Natur.234..132H. doi:10.1038/234132a0.
Clark, R.W.; White, G.D. (2008). "The Flyleaf Periodic Table". Journal of Chemical Education. 85 (4): 497. Bibcode:2008JChEd..85..497C. doi:10.1021/ed085p497.
Stewart, P.J. (2008). "The Flyleaf Table: An Alternative". Journal of Chemical Education. 85 (11): 1490. Bibcode:2008JChEd..85.1490S. doi:10.1021/ed085p1490.
Jensen, WB (2008). "The Periodic Table: Facts or Committees?". Journal of Chemical Education. 85 (11): 1491-1492. Bibcode:2008JChEd..85.1491J. doi:10.1021/ed085p1491.2.
Scerri, E. (2008). "The role of triads in the evolution of the periodic table: Past and present". Journal of Chemical Education. 85 (4): 585–89 (see p.589). Bibcode:2008JChEd..85..585S. doi:10.1021/ed085p585.
Pyykkö, P. (2011). "A suggested periodic table up to Z ≤ 172, based on Dirac–Fock calculations on atoms and ions". Physical Chemistry Chemical Physics. 13 (1): 161-168. Bibcode:2011PCCP...13..161P. doi:10.1039/c0cp01575j. PMID 20967377.
Cwiok, S.; Heenen, P.-H.; Nazarewicz, W. (2005). "Shape coexistence and triaxiality in the superheavy nuclei". Nature. 433 (7027): 705-9. Bibcode:2005Natur.433..705C. doi:10.1038/nature03336. PMID 15716943.
Cronyn, M. W. (august 2003). "The Proper Place for Hydrogen in the Periodic Table". Journal of Chemical Education. 80 (8): 947-951. Bibcode:2003JChEd..80..947C. doi:10.1021/ed080p947.
Jensen, W. B. (2008). "Is Mercury Now a Transition Element?". J. Chem. Educ. 85 (9): 1182-1183. Bibcode:2008JChEd..85.1182J. doi:10.1021/ed085p1182.
Francl, M. (maj 2009). "Table manners" (PDF). Nature Chemistry. 1 (2): 97-98. Bibcode:2009NatCh...1...97F. doi:10.1038/nchem.183. PMID 21378810.

illinois.edu

scs.illinois.edu

Benfey, Theodor (2009), "The Biography of a Periodic Spiral" (PDF), Bulletin for the History of Chemistry, vol. 34, no. 2, s. 141-145
Kaji, M. (2002). "D.I. Mendeleev's Concept of Chemical Elements and the Principle of Chemistry" (PDF). Bull. Hist. Chem. Tokyo Institute of Technology. 27 (1): 4-16. Hentet 11. juni 2012.

independent.co.uk

Emsely, J; Sharp, R (21. juni 2010). "The periodic table: Top of the charts". The Independent.

iupac.org

"Discovery and assignment of elements with atomic numbers 113, 115, 117 and 118". International Union of Pure and Applied Chemistry. 2015-12-30.
Fluck, E. (1988). "New Notations in the Periodic Table" (PDF). Pure Appl. Chem. IUPAC. 60 (3): 431-436. doi:10.1351/pac198860030431. Hentet 24. marts 2012.
Scerri, E. (2012). "Mendeleev's Periodic Table Is Finally Completed and What To Do about Group 3?". Chemistry International. 34 (4).
IUPAC (2013-05-01). "IUPAC Periodic Table of the Elements" (PDF). iupac.org. IUPAC. Arkiveret fra originalen (PDF) 22. august 2015. Hentet 2015-09-20.
"The constitution of group 3 of the periodic table". IUPAC. 2015. Hentet 29. marts 2016.{{cite web}}: CS1-vedligeholdelse: url-status (link)

goldbook.iupac.org

(engelsk) International Union of Pure and Applied Chemistry. "Electronegativity". Compendium of Chemical Terminology Internet-udgave.
(engelsk) International Union of Pure and Applied Chemistry. "transition element". Compendium of Chemical Terminology Internet-udgave.

media.iupac.org

Koppenol, W. H. (2002). "Naming of New Elements (IUPAC Recommendations 2002)" (PDF). Pure and Applied Chemistry. 74 (5): 787-791. doi:10.1351/pac200274050787.

jstor.org

Frazier, K. (1978). "Superheavy Elements". Science News. 113 (15): 236-238. doi:10.2307/3963006. JSTOR 3963006.

lemoyne.edu

web.lemoyne.edu

Newlands, J. A. R. (20. august 1864). "On Relations Among the Equivalents". Chemical News. 10: 94-95.
Newlands, J. A. R. (18. august 1865). "On the Law of Octaves". Chemical News. 12: 83.

meta-synthesis.com

En forgænger for Demings 18-søjlede system kan ses i Adams' 16-søjlede periodiske system fra 1911. Adams udelader de sjældne jordarter og de "radioaktive grundstoffer" (dvs. actiniderne) fra den centrale del af hans system, og viser dem i stedet indskudt for at spare plads (sjældne hordarter mellem Ba og eka-Yt; radioaktive grundstoffer mellem eka-Te og eka-I). Se: Elliot Q. A. (1911). "A modification of the periodic table". Journal of the American Chemical Society. 33(5): 684–688 (687).
Se The Internet database of periodic tables for afbildninger af disse typer.
Mark R. Leach. "1925 Courtines' Periodic Classification". Hentet 16. oktober 2012.
Mark R. Leach. "1949 Wringley's Lamina System". Arkiveret fra originalen 3. december 2011. Hentet 16. oktober 2012.
Mark R. Leach. "1996 Dufour's Periodic Tree". Hentet 16. oktober 2012.
Mark R. Leach. "1989 Physicist's Periodic Table by Timothy Stowe". Hentet 16. oktober 2012.
Mark R. Leach. "2002 Inorganic Chemist's Periodic Table". Hentet 16. oktober 2012.

nature.com

Hoffman, D. C.; Lawrence, F. O.; Mewherter, J. L.; Rourke, F. M. (1971). "Detection of Plutonium-244 in Nature". Nature. 234 (5325): 132-134. Bibcode:1971Natur.234..132H. doi:10.1038/234132a0.
Castelvecchi, D. (8. april 2015). "Exotic atom struggles to find its place in the periodic table". Nature News. Hentet 20. september 2015.

newscientist.com

Scerri, en af de fremmeste autoriteter på det periodiske systems historie (Sella 2013), foretrak oprindeligt idéen om en optimal form for periodisk system, men har sidenhen skiftet mening og støtter nu værdien ved en pluralitet af periodiske systemer. Se: Sella A. (2013). "An elementary history lesson". New Scientist. 2929, 13 August: 51, accessed 4 September 2013; og Scerri, E. (2013). "Is there an optimal periodic table and other bigger questions in the philosophy of science". 9 August, accessed 4 September 2013.

nih.gov

pubmed.ncbi.nlm.nih.gov

Pyykkö, P. (2011). "A suggested periodic table up to Z ≤ 172, based on Dirac–Fock calculations on atoms and ions". Physical Chemistry Chemical Physics. 13 (1): 161-168. Bibcode:2011PCCP...13..161P. doi:10.1039/c0cp01575j. PMID 20967377.
Cwiok, S.; Heenen, P.-H.; Nazarewicz, W. (2005). "Shape coexistence and triaxiality in the superheavy nuclei". Nature. 433 (7027): 705-9. Bibcode:2005Natur.433..705C. doi:10.1038/nature03336. PMID 15716943.
Xuefang, W.; Andrews, L.; Riedel, S.; Kaupp, M (2007). "Mercury Is a Transition Metal: The First Experimental Evidence for HgF₄". Angew. Chem. Int. Ed. 46 (44): 8371-8375. doi:10.1002/anie.200703710. PMID 17899620.
Francl, M. (maj 2009). "Table manners" (PDF). Nature Chemistry. 1 (2): 97-98. Bibcode:2009NatCh...1...97F. doi:10.1038/nchem.183. PMID 21378810.

npr.org

"Hello, Nihonium. Scientists Name 4 New Elements On The Periodic Table". NPR.org. Hentet 2016-06-11.

rsc.org

"IUPAC Announces Proposed New Element Names". Chemistry World. 8. juni 2016.
Ball, P. 2010, Column: The crucible in Chemistry World, November, Royal Society of Chemistry
Ball, P. (november 2010). "Would Element 137 Really Spell the End of the Periodic Table? Philip Ball Examines the Evidence". Royal Society of Chemistry. Hentet 30. september 2012.
See, for example: "Periodic Table". Royal Society of Chemistry. Hentet 20. september 2015.
Scerri, E (2015). "Five ideas in chemical education that must die - part five". educationinchemistryblog. Royal Society of Chemistry. Hentet 19. september 2015. It is high time that the idea of group 3 consisting of Sc, Y, La and Ac is abandoned

sciencedirect.com

Allred, A. L. (1960). "Electronegativity values from thermochemical data". Journal of Inorganic and Nuclear Chemistry. Northwestern University. 17 (3-4): 215-221. doi:10.1016/0022-1902(61)80142-5. Hentet 11. juni 2012.

springer.com

link.springer.com

Fricke, B.; Greiner, W.; Waber, J. T. (1971). "The continuation of the periodic table up to Z = 172. The chemistry of superheavy elements". Theoretica chimica acta. Springer-Verlag. 21 (3): 235-260. doi:10.1007/BF01172015. Hentet 28. november 2012.

theguardian.com

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