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  Partner: UNT College of Arts and Sciences
 Serial/Series Title: Rediscovery of the Elements
Rediscovery of the Elements: The Rare Earths - The Confusing Years

Rediscovery of the Elements: The Rare Earths - The Confusing Years

Date: Winter 2015
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Description: This article gives a timeline of research conducted on the rare earths, 17 elements found in the f-block and Group III chemical family of the Periodic Table. It covers discoveries made after the success of Swedish chemist, Carl Gustaf Mosander. The article describes the categorization of the rare earths that took place after Mosander's time, as well as separation techniques that developed.
Contributing Partner: UNT College of Arts and Sciences
Rediscovery of the Elements: The Rare Earths - The Beginnings

Rediscovery of the Elements: The Rare Earths - The Beginnings

Date: Autumn 2015
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Description: This article explores the rare earths, the chemically similar elements that occupy the f-block of the Periodic Table and the Group III chemical family. The articles shows the locations that certain rare earths were originally found. It also gives details on where the elements can be found currently, as well as major production areas. The cover of the Fall 2015 Hexagon journal (Vol. 106, Issue 3) features the Mountain Pass rare earth ore body in Southern California, which is mentioned in the article on pages 40-45 of the journal. A description of the photo on the cover of the journal can be found on page 38.
Contributing Partner: UNT College of Arts and Sciences
Rediscovery of the Elements: Sir Humphry Davy and the Alkalis

Rediscovery of the Elements: Sir Humphry Davy and the Alkalis

Date: Summer 2015
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Description: Article provides information on the history of alkalis, particularly discoveries associated with potassium and sodium. The article also gives information on Humphry Davy, the first person to prepare alkalis in elemental form.
Contributing Partner: UNT College of Arts and Sciences
Rediscovery of the Elements: Daniel Rutherford, Nitrogen, and the Demise of Phlogiston

Rediscovery of the Elements: Daniel Rutherford, Nitrogen, and the Demise of Phlogiston

Date: Spring 2015
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Description: Article describing Daniel Rutherford's discovery of nitrogen. The article also details the work of other scientists revolving around the discovery of nitrogen.
Contributing Partner: UNT College of Arts and Sciences
Rediscovery of the Elements: Joseph Black. Magnesia and Fixed Air

Rediscovery of the Elements: Joseph Black. Magnesia and Fixed Air

Date: Autumn 2014
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Description: Article describing Joseph Black and his discovery of magnesia and fixed air. The authors toured Edinburgh, Scotland in search of locations important to Black, providing the reader with maps and historical information regarding the sites.
Contributing Partner: UNT College of Arts and Sciences
Rediscovery of the Elements: Cronstedt and Nickel

Rediscovery of the Elements: Cronstedt and Nickel

Date: Summer 2014
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Description: Article describing Axel Fredrik Cronstedt and his discovery of nickel. Information regarding pertinent locations is included.
Contributing Partner: UNT College of Arts and Sciences
Rediscovery of the Elements: Rhenium and Technetium

Rediscovery of the Elements: Rhenium and Technetium

Date: Winter 2013
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Description: Article describing the discovery of rhenium and technetium by Walter Karl Friedrich Noddack and Ida Eva Noddack-Tacke. Information regarding pertinent locations is included.
Contributing Partner: UNT College of Arts and Sciences
Rediscovery of the Elements: The Noble Gases--Rayleigh and Ramsay

Rediscovery of the Elements: The Noble Gases--Rayleigh and Ramsay

Date: Autumn 2012
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Description: Article describing the discovery of argon, helium, and other inert gases by Lord Rayleigh, Sir William Ramsay, and other collaborators. Ramsay also characterized the noble gases and classified them within the structure of the Periodic Table of Elements.
Contributing Partner: UNT College of Arts and Sciences
Rediscovery of the Elements: Helium

Rediscovery of the Elements: Helium

Date: Summer 2012
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Description: Article describing the discovery of helium in the sun and on Earth via spectroscopy. Tourist information is included for areas significant to those involved.
Contributing Partner: UNT College of Arts and Sciences
Rediscovery of the Elements: The Harz Mountains and Göttingen

Rediscovery of the Elements: The Harz Mountains and Göttingen

Date: Spring 2012
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Description: Article describing the importance of the Harz Mountains and the University of Göttingen in the discovery of cadmium and thallium. Tourist information regarding the area is included.
Contributing Partner: UNT College of Arts and Sciences
Rediscovery of the Elements: Thallium, Crookes, and Lamy

Rediscovery of the Elements: Thallium, Crookes, and Lamy

Date: Winter 2011
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Description: Article describing the nearly simultaneous discovery of thallium by William Crookes and Claude-August Lamy. Tourist information is included for areas in London, England, and Lille, France, that are significant to the lives of these two men.
Contributing Partner: UNT College of Arts and Sciences
Rediscovery of the Elements: Hafnium

Rediscovery of the Elements: Hafnium

Date: Autumn 2011
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Description: Article describing the search for element 72, the scientists involved, and the nationalist politics surrounding the discovery. Tourist information is included for areas significant to the history of hafnium.
Contributing Partner: UNT College of Arts and Sciences
Rediscovery of the Elements: The Curious Case of Vestium

Rediscovery of the Elements: The Curious Case of Vestium

Date: Summer 2011
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Description: Article describing Jedrzej Sniadecki's career and his flawed findings regarding vestium. Tourist information is included for areas significant to Sniadecki's life and work.
Contributing Partner: UNT College of Arts and Sciences
Rediscovery of the Elements: Soddy and Isotopes

Rediscovery of the Elements: Soddy and Isotopes

Date: Winter 2010
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Description: Article describing Frederick Soddy's career and research of isotopes. Tourist information is included for areas significant to Soddy's life and work.
Contributing Partner: UNT College of Arts and Sciences
Rediscovery of the Elements: Moseley and Atomic Numbers

Rediscovery of the Elements: Moseley and Atomic Numbers

Date: Autumn 2010
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Description: Article describing the career of Henry Moseley and his findings regarding atomic numbers. Tourist information is included for areas relevant to Moseley.
Contributing Partner: UNT College of Arts and Sciences
Rediscovery of the Elements: Rutherford and Radon

Rediscovery of the Elements: Rutherford and Radon

Date: Summer 2010
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Description: Article describing the history of the discovery of radon. Tourist information is included for areas significant to radon and its discoverers.
Contributing Partner: UNT College of Arts and Sciences
Rediscovery of the Elements: Madam Curie

Rediscovery of the Elements: Madam Curie

Date: Spring 2010
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Description: Article describing the career of Marie Curie and the discovery of polonium and radium. Tourist information regarding the areas where the Curies were most active are included.
Contributing Partner: UNT College of Arts and Sciences
Rediscovery of the Elements: Courtois and Iodine

Rediscovery of the Elements: Courtois and Iodine

Date: Winter 2009
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Description: Article describing the history of iodine, including its discovery by Bernard Courtois while during the production of saltpeter. Tourist information regarding pertinent locations is included.
Contributing Partner: UNT College of Arts and Sciences
Rediscovery of the Elements: Ruthenium

Rediscovery of the Elements: Ruthenium

Date: Summer 2009
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Description: Article describing the discovery of platinum in Russia and the history of ruthenium. Tourist information regarding sites pertinent to this history are included.
Contributing Partner: UNT College of Arts and Sciences
Rediscovery of the Elements: The Platinum Metals

Rediscovery of the Elements: The Platinum Metals

Date: Spring 2009
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Description: Article describing the history of the platinum metals, from its discovery in the New World and subsequent experiments in Europe. Tourist information is provided regarding areas pertinent to the history of platinum.
Contributing Partner: UNT College of Arts and Sciences
Rediscovery of the Elements: Jáchymov (Joachimsthal), Czech Republic

Rediscovery of the Elements: Jáchymov (Joachimsthal), Czech Republic

Date: Winter 2008
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Description: Article describing Jáchymov, Czech Republic, and its relation to radon. Tourist information is included for pertinent areas.
Contributing Partner: UNT College of Arts and Sciences
Rediscovery of the Elements: Mineral Waters and Spectroscopy

Rediscovery of the Elements: Mineral Waters and Spectroscopy

Date: Autumn 2008
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Description: Article describing the career of Robert Bunsen and the history of spectroscopy and its use in mineral analysis. The discovery of cesium and rubidium using spectroscopy on mineral water is included. In addition, the authors offer tourist information regarding locations pertinent to Bunsen and certain mineral water springs.
Contributing Partner: UNT College of Arts and Sciences
Rediscovery of the Elements: Klaproth

Rediscovery of the Elements: Klaproth

Date: Summer 2008
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Description: Article describing the life and career of Martin Heinrich Klaproth, including his discoveries of uranium and zirconium. Tourist information regarding locations significant to his history is included.
Contributing Partner: UNT College of Arts and Sciences
Rediscovery of the Elements: Yttrium and Johan Gadolin

Rediscovery of the Elements: Yttrium and Johan Gadolin

Date: Spring 2008
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Description: Article describing the life and career of Johan Gadolin. Tourist information regarding locations significant to his history is included.
Contributing Partner: UNT College of Arts and Sciences
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