1) Alkaline earth metal 2) Alpha particle emitter 3) An element of luminescence 4) Atomic number 88 5) Chemical element 6) Curie discovery 7) Decaying metal 8) Discovery of 1898 9) Element discovered by Curie 10) Element discovered in 1898 11) Element number 88 12) Element with the symbol Ra 13) Marie Curie material
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1) Emitter 2) Ra
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Radium is a chemical element with symbol Ra and atomic number 88. It is the sixth element in group 2 of the periodic table, also known as the alkaline earth metals. The color of pure radium is almost pure white, but it readily oxidizes on exposure to air, becoming black in color. All isotopes of radium are highly radioactive, with the most stable ...
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http://en.wikipedia.org/wiki/Radium
[Ra] A view on the Blackpool Tower ...
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http://en.wikipedia.org/wiki/Radium_(Ra)
[horse] Radium was an outstanding Australian bred campdrafter and very influential ancestor of Australian Stock Horses. He was a bay stallion bred by Donald Beaton of Levedale, Gloucester, New South Wales. This son of the outstanding campdrafter, Cecil (1899, by Red Gauntlet from Meretha II) from Black Bess by Hukatere (1882) was foaled on ...
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[software] Radium is a proprietary Internet radio player application, used for listening to internet radio streams. It emphasizes a minimalist user interface. The application does not have a main window, instead opting to provide the entire user interface through its main menu. Users can either listen to Radium`s built-in selection of inter...
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• (n.) An intensely radioactive metallic element found (combined) in minute quantities in pitchblende, and various other uranium minerals. Symbol, Ra; atomic weight, 226.4. Radium was discovered by M. and Mme. Curie, of Paris, who in 1902 separated compounds of it by a tedious process from pitchblende. Its compounds color flames carmine and gi...
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radioactive chemical element, heaviest of the alkaline-earth metals of main Group IIa of the periodic table. Radium is a silvery white metal that ... [9 related articles]
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http://www.britannica.com/eb/a-z/r/4
A radioactive decay product of uranium often found in uranium ore. It has several radioactive isotopes. Radium-226 decays to radon-222
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http://www.encyclo.co.uk/local/20725
The celebrated radioactive element discovered by Marie and pierre curie in 1898. ... (12 Dec 1998) ...
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http://www.encyclo.co.uk/local/20973
(Ra) (ra´de-әm) a chemical element, atomic number 88, atomic weight, 226. Radium is highly radioactive and is found in uranium degradation processes. Radium-226 has a half-life of 1622 years. It and its short-lived decay products emit alpha particles, beta particles, and gamma rays. One of the dec...
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An element often found in uranium ore. It has several radioactive isotopes. Radium-226 decays to Radon-222.
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http://www.encyclo.co.uk/local/21076
A radioactive decay product of uranium often found in uranium ore. It has several radioactive isotopes. Radium-226 decays to radon-222.
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Ra`di·um noun [ New Latin , from Latin
radius ray.]
(Chemistry) An intensely radioactive metallic element found (combined) in minute quantities in pitchblende, and various other uranium minerals. Symbol,
Ra ; atomic weight, 226.4. Radium was discovered by M. and Mme. Curie, of Paris...
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Radium consists of 16 isotopes, the most abundant being the Radioactive Radium-226. This is a metallic substance, has a Half-Life of 1602 years and Decays via a complicated chain, eventually leading to stable Lead-206. Along the way it decays to Radon Gas (Rn-222). Radium was isolated from pitchblende in 1898 by Marie and Pierre Curie. The activit....
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http://www.ionactive.co.uk/glossary_atoz.html?s=az&t=r
(Ra) Type: Term Pronunciation: rā′dē-ŭm Definitions: 1. A metallic element, atomic no. 88, extracted in very minute quantities from pitchblende; 226Ra, its longest-lived isotope, is produced as an intermediate in the uranium series by the emission of an α particle from thorium-230 (ionium); 226Ra emits α partic...
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Radium: The celebrated radioactive element discovered by Marie and Pierre Curie in 1898.
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Radium is a radioactive gaseous element with the symbol Ra.
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Radioactive, metallic element.
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A radioactive element which the chemical symbol Ra; radium and its salts are used in gamma-ray radiography because of their radioactivity. Melting point is 700 B0C (1292 B0F).
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A radioactive element of the alkaline earth metals. White in colour and properties close to barium. Symbol Ra
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https://www.encyclo.co.uk/local/20687
The first substance discovered to give off radiation. Used to treat cancer.
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https://www.encyclo.co.uk/local/20753
Ra noun an intensely radioactive metallic element that occurs in minute amounts in uranium ores
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https://www.encyclo.co.uk/local/20974
White, radioactive, metallic element, atomic number 88, relative atomic mass 226.02. It is one of the alkaline-earth metals, found in nature in pitchblende and other uranium ores. Of the 16 isotopes, the commonest, Ra-226, has a half-life of 1,620 years. The element was discovered and named in 1898 by Pierre and Marie Curie, who were in...
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https://www.encyclo.co.uk/local/21221
A radioactive decay product of uranium often found in uranium ore. It has several radioactive isotopes. Radium-226 decays to radon-222.
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https://www.world-nuclear.org/nuclear-basics/glossary.aspx
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