[DOC] [TLE] Radium, Chemical Element - uses, elements, metal, gas, number ... [PAR] Radium is luminescent, meaning it gives off radiation that can be seen in the dark
. ... Eventually, they isolated a new element that gave off radiation much more 
intensely ... It took the Curies another four years to prepare one gram of the 
element. To do so, they had to sift through more than seven metric tons of 
pitchblende! [DOC] [TLE] Radium - Wikipedia [PAR] Radium is a chemical element with symbol Ra and atomic number 88. It is the 
sixth element in ... Radium was isolated in its metallic state by Marie Curie and 
Andr-Louis .... of radium, many of these names fell out of use, and "radium" 
came to refer to all ... One ton of pitchblende typically yields about one seventh of 
a gram of... [DOC] [TLE] Marie and Pierre Curie and the Discovery of Polonium and Radium [PAR] Dec 1, 1996 ... Just after a few days, Marie discovered that thorium gives off the same rays as 
uranium. ... Several tons of pitchblende was later put at their disposal through the 
... material - isolated one decigram of almost pure radium chloride and had .... 
played in the discovery of radium and polonium, he added, "Do you... [DOC] [TLE] Curies isolate radium - Apr 20, 1902 - HISTORY.com [PAR] On this day in History, Curies isolate radium on Apr 20, 1902. ... You're almost 
done! .... refined several tons of pitchblende in order to isolate one-tenth gram of 
pure radium ... marie curie, radium, polonium, radioactivity, elements, the nobel 
prize in ... approximately 50 miles off the Louisiana coast, kills 11 people and 
triggers... [DOC] [TLE] It's Elemental - The Element Radium [PAR] The Element Radium - Basic Physical and Historical Information. ... Curie needed 
to refine several tons of pitchblende in order to obtain tiny amounts of radium and 
... of atoms in a one gram sample of radium-226 that will decay in one second,... [DOC] [TLE] The discovery of new elements - Royal Society of Chemistry [PAR] You can use the interactive Periodic Table to investigate this idea. ... It is a great 
achievement to discover a single element out of the 111 or so that are now 
known. ... Q 1. Berzelius used the technique of reaction with carbon to isolate 
elements .... gram of a new element, radium, from over eight tonnes of the ore 
pitchblende. [DOC] [TLE] Marie Curie - Biography, Facts and Pictures - Famous Scientists [PAR] Marie Curie discovered two new chemical elements - radium and polonium. She 
carried out the first research into the treatment of tumors with radiation, ... By the 
end of 1898, after laboriously processing tons of pitchblende, they .... Marie Curie 
could only afford 1 gram of it for use in cancer therapies at the Radium Institute. [DOC] [TLE] radium (Ra) | chemical element | Britannica.com [PAR] Ra radioactive chemical element, the heaviest of the alkaline-earth metals of 
Group ... of pure radium chloride was prepared by refining several tons of 
pitchblende residues, and by 1910 Marie Curie and Andr-Louis Debierne had 
isolated the metal itself. ... A gram of radium-226 will emit 1  10 4 millilitre of 
radon per day. [DOC] [TLE] The Discovery of Polonium and Radium - American Institute of Physics [PAR] This pitchblende sample was instrumental in the discovery of radium and 
polonium. ... be due to one or more additional, as yet undiscovered, radioactive 
elements. ... Neither of us could foresee that in beginning this work we were to 
enter the ... of the new elements, Marie set out to isolate them from the bismuth 
and barium... [DOC] [TLE] Radium Element Facts - Chemicool [PAR] The chemical element radium is classed as an alkali earth metal. ... by Marie S. 
Curie and her husband Pierre in pitchblende (mainly uranium dioxide, UO2). ... 
percent uranium oxides, about eight tons of it is needed to extract 1 gram of 
radium. ... Metallic radium was first isolated in 1910 by Marie Curie and Andre 
Debierne... [DOC] [TLE] Facts About Radium -

Question: You can isolate about 1 gram of this element, Ra, out of several tons of pitchblende
Answer: Radium