Period 6 element (English Wikipedia)

Anthony, John W.; Bideaux, Richard A.; Bladh, Kenneth W.; Nichols, Monte C., eds. (1990). "Bismuth" (PDF). Handbook of Mineralogy. Vol. I (Elements, Sulfides, Sulfosalts). Chantilly, VA, US: Mineralogical Society of America. ISBN 978-0-9622097-0-3. Retrieved December 5, 2011.

bbc.co.uk (Global: 8^th place; English: 10^th place)

"Meteorites delivered gold to Earth". BBC News. 2011-09-08.

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

Walter Koechner (2006). Solid-state laser engineering. Springer. pp. 47–. ISBN 978-0-387-29094-2. Retrieved 15 January 2012.
Lassner, Erik; Schubert, Wolf-Dieter (1999). "low temperature brittleness". Tungsten: properties, chemistry, technology of the element, alloys, and chemical compounds. Springer. pp. 20–21. ISBN 978-0-306-45053-2.

britannica.com (Global: 40^th place; English: 58^th place)

"platinum (Pt)." Encyclopædia Britannica Online. Encyclopædia Britannica Inc., 2012. Web. 24 April 2012

britannica.com.ph (Global: low place; English: low place)

Lanthanide Archived 2011-09-11 at the Wayback Machine, Encyclopædia Britannica on-line

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

Lanthanum – Chemistry Encyclopedia – reaction, water, elements, metal, gas, name, atom. Chemistryexplained.com. Retrieved on 2012-01-15.

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

William B. Jensen (1982). "The Positions of Lanthanum (Actinium) and Lutetium (Lawrencium) in the Periodic Table". J. Chem. Educ. 59 (8): 634–636. Bibcode:1982JChEd..59..634J. doi:10.1021/ed059p634.
Fluck, E. (1988). "New Notations in the Periodic Table" (PDF). Pure Appl. Chem. 60 (3): 431–436. doi:10.1351/pac198860030431. S2CID 96704008. Archived (PDF) from the original on 25 March 2012. Retrieved 24 March 2012.
Scerri, Eric (18 January 2021). "Provisional Report on Discussions on Group 3 of the Periodic Table" (PDF). Chemistry International. 43 (1): 31–34. doi:10.1515/ci-2021-0115. S2CID 231694898. Archived (PDF) from the original on 13 April 2021. Retrieved 9 April 2021.
Coplen, T. B.; Peiser, H. S. (1998). "History of the recommended atomic-weight values from 1882 to 1997: a comparison of differences from current values to the estimated uncertainties of earlier values" (PDF). Pure Appl. Chem. 70 (1): 237–257. doi:10.1351/pac199870010237. S2CID 96729044.
Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. p. 1233. doi:10.1016/C2009-0-30414-6. ISBN 978-0-08-037941-8.
McMaster, J. & Enemark, John H (1998). "The active sites of molybdenum- and tungsten-containing enzymes". Current Opinion in Chemical Biology. 2 (2): 201–207. doi:10.1016/S1367-5931(98)80061-6. PMID 9667924.
Hille, Russ (2002). "Molybdenum and tungsten in biology". Trends in Biochemical Sciences. 27 (7): 360–367. doi:10.1016/S0968-0004(02)02107-2. PMID 12114025.
Wheate, N. J.; Walker, S.; Craig, G. E.; Oun, R. (2010). "The status of platinum anticancer drugs in the clinic and in clinical trials" (PDF). Dalton Transactions. 39 (35): 8113–27. doi:10.1039/C0DT00292E. hdl:2123/14271. PMID 20593091.
Kirk, Jason; Ruiz, Joaquin; Chesley, John; Titley, Spencer (2003). "The Origin of Gold in South Africa" (PDF). American Scientist. 91 (6): 534–541. doi:10.1511/2003.38.534. ISSN 0003-0996.
Willbold, Matthias; Elliott, Tim; Moorbath, Stephen (2011). "The tungsten isotopic composition of the Earth's mantle before the terminal bombardment". Nature. 477 (7363): 195–198. Bibcode:2011Natur.477..195W. doi:10.1038/nature10399. PMID 21901010. S2CID 4419046.
Norrby, L.J. (1991). "Why is mercury liquid? Or, why do relativistic effects not get into chemistry textbooks?". Journal of Chemical Education. 68 (2): 110. Bibcode:1991JChEd..68..110N. doi:10.1021/ed068p110.
Hawkes, Stephen J. (2010). "Polonium and Astatine Are Not Semimetals". Journal of Chemical Education. 87 (8): 783. Bibcode:2010JChEd..87..783H. doi:10.1021/ed100308w.
Daumann, Lena J. (25 April 2019). "Essential and Ubiquitous: The Emergence of Lanthanide Metallobiochemistry". Angewandte Chemie International Edition. 58 (37): 12795–12802. doi:10.1002/anie.201904090. PMID 31021478. Retrieved 15 June 2019.

epa.gov (Global: 882^nd place; English: 600^th place)

"A Citizen's Guide to Radon". www.epa.gov. United States Environmental Protection Agency. October 12, 2010. Archived from the original on May 27, 2012. Retrieved January 29, 2012.

etymonline.com (Global: 287^th place; English: 321^st place)

Harper, Douglas. "platinum". Online Etymology Dictionary.

facts-about.org.uk (Global: low place; English: low place)

"Facts about Radon". Facts about. Archived from the original on 2005-02-22. Retrieved 2008-09-07.

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

antoine.frostburg.edu

Senese, F. "Why is mercury a liquid at STP?". General Chemistry Online at Frostburg State University. Retrieved May 1, 2007.

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

World Gold Council FAQ. www.gold.org

gsu.edu (Global: 1,911^th place; English: 1,817^th place)

hyperphysics.phy-astr.gsu.edu

"Polonium". Retrieved 2009-05-05.

handle.net (Global: 102^nd place; English: 76^th place)

hdl.handle.net

Wheate, N. J.; Walker, S.; Craig, G. E.; Oun, R. (2010). "The status of platinum anticancer drugs in the clinic and in clinical trials" (PDF). Dalton Transactions. 39 (35): 8113–27. doi:10.1039/C0DT00292E. hdl:2123/14271. PMID 20593091.

harvard.edu (Global: 18^th place; English: 17^th place)

ui.adsabs.harvard.edu

William B. Jensen (1982). "The Positions of Lanthanum (Actinium) and Lutetium (Lawrencium) in the Periodic Table". J. Chem. Educ. 59 (8): 634–636. Bibcode:1982JChEd..59..634J. doi:10.1021/ed059p634.
Willbold, Matthias; Elliott, Tim; Moorbath, Stephen (2011). "The tungsten isotopic composition of the Earth's mantle before the terminal bombardment". Nature. 477 (7363): 195–198. Bibcode:2011Natur.477..195W. doi:10.1038/nature10399. PMID 21901010. S2CID 4419046.
Norrby, L.J. (1991). "Why is mercury liquid? Or, why do relativistic effects not get into chemistry textbooks?". Journal of Chemical Education. 68 (2): 110. Bibcode:1991JChEd..68..110N. doi:10.1021/ed068p110.
Hawkes, Stephen J. (2010). "Polonium and Astatine Are Not Semimetals". Journal of Chemical Education. 87 (8): 783. Bibcode:2010JChEd..87..783H. doi:10.1021/ed100308w.

huffingtonpost.com (Global: 109^th place; English: 87^th place)

"Meteor Shower Rained Gold On Ancient Earth". Huffington Post. 2011-09-10.

iupac.org (Global: 538^th place; English: 863^rd place)

iupac.org

Fluck, E. (1988). "New Notations in the Periodic Table" (PDF). Pure Appl. Chem. 60 (3): 431–436. doi:10.1351/pac198860030431. S2CID 96704008. Archived (PDF) from the original on 25 March 2012. Retrieved 24 March 2012.
Scerri, Eric (18 January 2021). "Provisional Report on Discussions on Group 3 of the Periodic Table" (PDF). Chemistry International. 43 (1): 31–34. doi:10.1515/ci-2021-0115. S2CID 231694898. Archived (PDF) from the original on 13 April 2021. Retrieved 9 April 2021.
Holden, Norman E. & Coplen, Tyler (January–February 2004). "The Periodic Table of the Elements". Chemistry International. 26 (1). IUPAC: 8. Archived from the original on February 17, 2004. Retrieved March 23, 2010.

old.iupac.org

International Union of Pure and Applied Chemistry (2005). Nomenclature of Inorganic Chemistry (IUPAC Recommendations 2005). Cambridge (UK): RSC–IUPAC. ISBN 0-85404-438-8. pp. 248–49. Electronic version..
Coplen, T. B.; Peiser, H. S. (1998). "History of the recommended atomic-weight values from 1882 to 1997: a comparison of differences from current values to the estimated uncertainties of earlier values" (PDF). Pure Appl. Chem. 70 (1): 237–257. doi:10.1351/pac199870010237. S2CID 96729044.

lanl.gov (Global: 3,495^th place; English: 2,913^th place)

periodic.lanl.gov

"Characterizing the Elements". Los Alamos National Laboratory. Retrieved 4 March 2013.

mass.gov (Global: 4,670^th place; English: 2,640^th place)

"Public Health Fact Sheet on Radon – Health and Human Services". Mass.Gov. Retrieved 2011-12-04.

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

"Rhenium". MetalPrices.com. Archived from the original on January 15, 2012. Retrieved February 2, 2012.

nih.gov (Global: 4^th place; English: 4^th place)

pubmed.ncbi.nlm.nih.gov

McMaster, J. & Enemark, John H (1998). "The active sites of molybdenum- and tungsten-containing enzymes". Current Opinion in Chemical Biology. 2 (2): 201–207. doi:10.1016/S1367-5931(98)80061-6. PMID 9667924.
Hille, Russ (2002). "Molybdenum and tungsten in biology". Trends in Biochemical Sciences. 27 (7): 360–367. doi:10.1016/S0968-0004(02)02107-2. PMID 12114025.
Wheate, N. J.; Walker, S.; Craig, G. E.; Oun, R. (2010). "The status of platinum anticancer drugs in the clinic and in clinical trials" (PDF). Dalton Transactions. 39 (35): 8113–27. doi:10.1039/C0DT00292E. hdl:2123/14271. PMID 20593091.
Willbold, Matthias; Elliott, Tim; Moorbath, Stephen (2011). "The tungsten isotopic composition of the Earth's mantle before the terminal bombardment". Nature. 477 (7363): 195–198. Bibcode:2011Natur.477..195W. doi:10.1038/nature10399. PMID 21901010. S2CID 4419046.
Daumann, Lena J. (25 April 2019). "Essential and Ubiquitous: The Emergence of Lanthanide Metallobiochemistry". Angewandte Chemie International Edition. 58 (37): 12795–12802. doi:10.1002/anie.201904090. PMID 31021478. Retrieved 15 June 2019.

oed.com (Global: 360^th place; English: 231^st place)

"Tungsten". Oxford English Dictionary (Online ed.). Oxford University Press. (Subscription or participating institution membership required.)

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

Soos, Andy (2011-01-06). "Gold Mining Boom Increasing Mercury Pollution Risk". Advanced Media Solutions, Inc. Oilprice.com. Retrieved 2011-03-26.

paho.org (Global: 8,358^th place; English: low place)

bvsde.paho.org

Toxological profile for radon Archived 2016-04-15 at the Wayback Machine, Agency for Toxic Substances and Disease Registry, U.S. Public Health Service, In collaboration with U.S. Environmental Protection Agency, December 1990.

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

Dumé, Belle (2003-04-23). "Bismuth breaks half-life record for alpha decay". Physicsweb.

rochester.edu (Global: 2,691^st place; English: 1,948^th place)

sas.rochester.edu

Kirk, Jason; Ruiz, Joaquin; Chesley, John; Titley, Spencer (2003). "The Origin of Gold in South Africa" (PDF). American Scientist. 91 (6): 534–541. doi:10.1511/2003.38.534. ISSN 0003-0996.

sciencedaily.com (Global: 993^rd place; English: 920^th place)

"Where does all Earth's gold come from? Precious metals the result of meteorite bombardment, rock analysis finds".

semanticscholar.org (Global: 11^th place; English: 8^th place)

api.semanticscholar.org

Fluck, E. (1988). "New Notations in the Periodic Table" (PDF). Pure Appl. Chem. 60 (3): 431–436. doi:10.1351/pac198860030431. S2CID 96704008. Archived (PDF) from the original on 25 March 2012. Retrieved 24 March 2012.
Scerri, Eric (18 January 2021). "Provisional Report on Discussions on Group 3 of the Periodic Table" (PDF). Chemistry International. 43 (1): 31–34. doi:10.1515/ci-2021-0115. S2CID 231694898. Archived (PDF) from the original on 13 April 2021. Retrieved 9 April 2021.
Coplen, T. B.; Peiser, H. S. (1998). "History of the recommended atomic-weight values from 1882 to 1997: a comparison of differences from current values to the estimated uncertainties of earlier values" (PDF). Pure Appl. Chem. 70 (1): 237–257. doi:10.1351/pac199870010237. S2CID 96729044.
Willbold, Matthias; Elliott, Tim; Moorbath, Stephen (2011). "The tungsten isotopic composition of the Earth's mantle before the terminal bombardment". Nature. 477 (7363): 195–198. Bibcode:2011Natur.477..195W. doi:10.1038/nature10399. PMID 21901010. S2CID 4419046.

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

"Chemical fact sheet — Thallium". Spectrum Laboratories. April 2001. Archived from the original on 2008-02-21. Retrieved 2008-02-02.

usyd.edu.au (Global: 6,328^th place; English: 4,345^th place)

ses.library.usyd.edu.au

Wheate, N. J.; Walker, S.; Craig, G. E.; Oun, R. (2010). "The status of platinum anticancer drugs in the clinic and in clinical trials" (PDF). Dalton Transactions. 39 (35): 8113–27. doi:10.1039/C0DT00292E. hdl:2123/14271. PMID 20593091.

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

Fluck, E. (1988). "New Notations in the Periodic Table" (PDF). Pure Appl. Chem. 60 (3): 431–436. doi:10.1351/pac198860030431. S2CID 96704008. Archived (PDF) from the original on 25 March 2012. Retrieved 24 March 2012.
Scerri, Eric (18 January 2021). "Provisional Report on Discussions on Group 3 of the Periodic Table" (PDF). Chemistry International. 43 (1): 31–34. doi:10.1515/ci-2021-0115. S2CID 231694898. Archived (PDF) from the original on 13 April 2021. Retrieved 9 April 2021.
Lanthanide Archived 2011-09-11 at the Wayback Machine, Encyclopædia Britannica on-line
Holden, Norman E. & Coplen, Tyler (January–February 2004). "The Periodic Table of the Elements". Chemistry International. 26 (1). IUPAC: 8. Archived from the original on February 17, 2004. Retrieved March 23, 2010.
"Rhenium". MetalPrices.com. Archived from the original on January 15, 2012. Retrieved February 2, 2012.
"Platinum|" (PDF). Archived from the original (PDF) on 2012-10-18. Retrieved 2012-08-28.
"Chemical fact sheet — Thallium". Spectrum Laboratories. April 2001. Archived from the original on 2008-02-21. Retrieved 2008-02-02.
Toxological profile for radon Archived 2016-04-15 at the Wayback Machine, Agency for Toxic Substances and Disease Registry, U.S. Public Health Service, In collaboration with U.S. Environmental Protection Agency, December 1990.
"Facts about Radon". Facts about. Archived from the original on 2005-02-22. Retrieved 2008-09-07.

webelements.com (Global: 3,527^th place; English: low place)

"WebElements Periodic Table of the Elements". University of Sheffield. Retrieved 2010-12-01.

webmineral.com (Global: 4,298^th place; English: 4,354^th place)

Bismuth. Web Mineral. Retrieved on 2011-12-17.

who.int (Global: 195^th place; English: 302^nd place)

euro.who.int

"Platinum|" (PDF). Archived from the original (PDF) on 2012-10-18. Retrieved 2012-08-28.

wiley.com (Global: 222^nd place; English: 297^th place)

onlinelibrary.wiley.com

Daumann, Lena J. (25 April 2019). "Essential and Ubiquitous: The Emergence of Lanthanide Metallobiochemistry". Angewandte Chemie International Edition. 58 (37): 12795–12802. doi:10.1002/anie.201904090. PMID 31021478. Retrieved 15 June 2019.

worldcat.org (Global: 5^th place; English: 5^th place)

search.worldcat.org

Kirk, Jason; Ruiz, Joaquin; Chesley, John; Titley, Spencer (2003). "The Origin of Gold in South Africa" (PDF). American Scientist. 91 (6): 534–541. doi:10.1511/2003.38.534. ISSN 0003-0996.

Period 6 element (English Wikipedia)

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