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Topic: Radium (II) chloride

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Radium

Strontium

Barium

Beryllium

Calcium

Atomic number

	Radium - Wikipedia, the free encyclopedia
		Radium preparations are remarkable for maintaining themselves at a higher temperature than their surroundings, and for their radiations, which are of three kinds: alpha rays, beta rays, and gamma rays.
		Radium (usually in the form of radium chloride) is used in medicine to produce radon gas which in turn is used as a cancer treatment.
		In 1902 radium was isolated into its pure metal by Curie and Andre Debierne through the electrolysis of a pure radium chloride solution by using a mercury cathode and distilling in an atmosphere of hydrogen gas.
	en.wikipedia.org /wiki/Radium (1056 words)

	Radium - Wikipedia, the free encyclopedia (Site not responding. Last check: 2007-11-06)
		Radium is luminescent (giving a faint blue color), corrodes in water to form and is a bit more volatile than barium.
		In 1902 radium was isolated into its pure metal by Curie and through the electrolysis of a pure radium chloride solution by using a mercury cathode and distilling in an atmosphere of hydrogen gas.
		Radium was originally acquired from pitchblende ore from (7 metric tons of pitchblende yields 1 gram of radium).
	www.americancanyon.us /project/wikipedia/index.php/Radium (1107 words)

	MSN Encarta - Print Preview - Radium (Site not responding. Last check: 2007-11-06)
		Radium is formed by the radioactive disintegration of uranium and is consequently found in all uranium ores.
		Radium is present in uranium ore to the extent of 1 part of radium to 3 million of uranium.
		It is extracted from the ore by the addition of a compound of barium that acts as a “carrier.” The chemical properties of radium are similar to those of barium, and the two substances are removed from the other components of the ore by precipitation of barium and radium sulfate.
	encarta.msn.com /text_761554787___2/Radium.html (234 words)

	radium. The Columbia Encyclopedia, Sixth Edition. 2001-05
		The most important property of radium and its compounds is their radioactivity; radiotherapy is used in medicine in the treatment of cancer.
		Radium is also used as a neutron source (mixed with beryllium) and as a gamma-ray source.
		Radium was discovered in 1898 by Pierre and Marie Curie in pitchblende given them by Austria after the uranium salts had been removed for use in glass manufacture.
	www.bartleby.com /65/ra/radium.html (491 words)

	[No title] (Site not responding. Last check: 2007-11-06)
		Radium is a chemical element in the periodic table that has the symbol Ra and atomic number 88.
		Radium is an alkaline earth metal that is found in minute amounts in uranium ores, and is extremely radioactive whose most stable isotope, Ra-226, has a half-life of 1602 years and decays into the deadly radon gas.
		Radium is luminescent (giving a faint blue color), decomposes in water to form radium hydroxide and is a bit more volatile than barium.
	www.online-encyclopedia.info /encyclopedia/r/ra/radium.html (960 words)

	[No title] (Site not responding. Last check: 2007-11-06)
		Radium was obtained by Madame Curie in 1910 by the electrolysis of a solution of radium chloride, mercury being used as a cathode.
		Radium is a silvery metal which resembles barium, and ail of its properties place it in Group II as the final member of the calcium family.
		Radium is bivalent, and its compounds resemble the corresponding compounds of barium.
	home.att.net /~lfretzin/FBC45.html (3829 words)

	MSN Encarta - Search View - Radium
		Radiation from radium has a harmful effect upon living cells, and radium burns are caused by overexposure to the rays.
		Radium is now used in the treatment of only a few kinds of cancer; radium chloride or radium bromide is enclosed in a sealed tube and inserted in the diseased tissue.
		When a radium salt is mixed with a substance such as zinc sulfide, the substance is caused to luminesce by the bombardment of the alpha rays emitted by the radium.
	encarta.msn.com /text_761554787__1/Radium.html (564 words)

	Barium chloride - Wikipedia, the free encyclopedia
		Since barium chloride is soluble in water, it can react with sulfate ion to produce a thick white precipitate of barium sulfate.
		Barium chloride behaves as a simple salt, and it is completely neutral in solution.
		Barium chloride may be prepared from barium hydroxide or barium carbonate (found naturally as witherite) reacting with hydrochloric acid.
	en.wikipedia.org /wiki/Barium_chloride (254 words)

	Encyclopedia: Radium (Site not responding. Last check: 2007-11-06)
		The alkaline earth metals are the series of elements in Group 2 of the periodic table: beryllium, magnesium, calcium, strontium, barium and radium (not always considered due to its very short half-life and its radioactive characteristics).
		Radium chloride, RaCl2, is a salt commonly used for research and medicine.
		The chloride ion is formed when the element chlorine picks up one electron to form the anion (negatively charged ion) Cl−.
	www.nationmaster.com /encyclopedia/Radium (5319 words)

	MSN Encarta - Radium
		In group 2 (or IIa) of the periodic table (see Periodic Law), radium is one of the alkaline earth metals.
		Radium was discovered in the ore pitchblende by the French chemists Marie Curie and Pierre Curie in 1898.
		One fraction, isolated by use of bismuth sulfide, contained a strongly radioactive substance that the Curies showed was a new element, polonium.
	encarta.msn.com /encnet/refpages/RefArticle.aspx?refid=761554787 (511 words)

	Radium (II) chloride Definition / Radium (II) chloride Research (Site not responding. Last check: 2007-11-06)
		Radium is an alkaline earth metal that is located in trace amounts in uranium ores.
		An example is table salt, which is sodium chloride with the formula NaCl.
		Radium II chloride is a salt commonly used.
	www.elresearch.com /Radium_(II)_chloride (174 words)

	Hahn and Strassmann discover fission
		The "radium" was separated from the irradiated uranium sample with barium chloride; after 2 1/2 h, the barium chloride was dissolved again, and reprecipitated.
		The short-lived Ra II has completely decayed during this time, and the Ac II (2 1/2 h half-life) which was formed from Ra II in the barium chloride is removed in the recrystallization process.
		In the meantime, we have determined that the 14-min radium (previously given as 25 min) decays to actinium with a 2.5-h half-life (previously given as 4 h).
	dbhs.wvusd.k12.ca.us /webdocs/Chem-History/Hahn-fission-1939a/Hahn-fission-1939a.html (3087 words)

	Alchemical and archaic chemistry terms
		Purgative, made by subliming a mixture of mercuric chloride and metallic mercury, triturated in a mortar.
		This was heated in a iron pot and the crust of calomel formed on the lid was ground to powder and boiled with water to remove the very poisonous mercuric chloride.
		One Kelvin (denoted simply K or sometimes in older sources anddeg;K) is the same size as a Celsius degree, so the normal boiling point of water is 273.15 K and the normal boiling point is 373.15 K. King's Yellow.
	www.levity.com /alchemy/al_term1.html (1403 words)

	wiki/Radium (II) chloride Definition / wiki/Radium (II) chloride Research (Site not responding. Last check: 2007-11-06)
		As with all radium compounds, it is highly radioactiveRadioactive decay is the set of various processes by which unstable atomic nuclei (nuclides) emit subatomic particles.
		Decay is said to occur in the parent nucleus and produce a daughter nucleus.
		The term implies the information in the stub is insufficient or hard to interpret, e.g., "An airplane is a flying ma...
	www.elresearch.com /wiki/Radium_(II)_chloride (711 words)

	Radium (Site not responding. Last check: 2007-11-06)
		Radium (Latin radius, ray) was discovered by Marie Curie and her husband Pierre in 1898 in pitchblend/uraninite from North Bohemia.
		Handling of radium has since been blamed for Curie's premature death.
		EnvironmentalChemistry.com - Radium (also used as a reference)
	www.theezine.net /r/radium.html (969 words)

	Lead - Aquatic Life Water Quality Criteria - U.S. EPA
		Allen, P. Effects of acute exposure to cadmium (II) chloride and lead (II) chloride on the hematological profile of Oreochromis aureus (Steindachner).
		Christensen, G.M. Biochemical effects of methylmercuric chloride, cadmium chloride and lead nitrate on embryos and alevins of the brook trout.
		The effect of methylmercuric chloride, cadmium chloride, and lead nitrate on six biochemical factors of the brook trout (Salvelinus fontinalis).
	www.epa.gov /ost/criteria/lead/pbref.html (10106 words)

	other neat stuff
		Radium accumulates on the bones like calcium does
		radium's radiation bombards the bone marrow that creates red blood cells
		the danger of dying of radium poisoning is minute, because of its small natural quantities
	www.rwpinc.com /loyd/radium/other.htm (53 words)

	NOMENCLATURE:
		The symbol Cl represents the non-metallic element chlorine, whose stem is chlor.
		CuS is copper (II) sulfide or cupric sulfide
		HgO is mercury (II) oxide or mercuric oxide
	www.palomar.edu /chemistry/docs/Name_of_Chemical_Compounds.html (787 words)

	Chloride - Enpsychlopedia (Site not responding. Last check: 2007-11-06)
		The word chloride can also refer to a chemical compound in which one or more chlorine atoms are covalently bonded in the molecule.
		The simplest example of an inorganic covalently bonded chloride is hydrogen chloride, HCl.
		phosphorus trichloride, phosphorus pentachloride, and thionyl chloride - all three are reactive chlorinating reagents which have been used in a laboratory.
	www.grohol.com /psypsych/Chloride (250 words)

	Chemistry : Periodic Table : radium : chemical reaction data
		The surface of radium metal is covered with a thin layer of oxide that helps protect the metal from attack by air, but to a lesser extent than the corresponding layer in magnesium.
		Radium, four places below magnesium in the periodic table is more reactive with air than magnesium.
		I'm not sure that radium has been reacted directly with the halogens, although certainly two of the expected products radium(II) chloride and radium(II) bromide are known.
	www.webelements.com /webelements/elements/text/Ra/chem.html (206 words)

	Glossary
		Part V (S-Z) Go to Part I (A-B), Part II (C-F), Part III (G-L), or Part IV (M-R).
		S, an acid-base indicator that changes from pink to yellow as the pH is raised through 2.2 and then to blue as the pH is raised through 8.8
		II: an isotope of uranium produced in uranium decay, namely
	web.lemoyne.edu /~giunta/archems.html (982 words)

	MC/45 U.S. Radium Corporation - University Libraries Special Collections
		The primary activity at the U.S. Radium Corporation was the extraction and purification of radium from carnotite ore to produce luminous paints, which were produced under the brand name Undark.
		It was later learned that the deaths were due to radiation contamination associated with exposure to radium, one of the prime ingredients of the luminescent paint.
		The original microfilm was made at Argonne National Laboratory sometime between 1969 and 1981 from documents furnished Argonne for research purposes by U.S. Radium Corp. The records were contaminated by radium, and the originals were disposed of as contaminated waste.
	www.umdnj.edu /librweb/speccoll/USRadiumCorp.html (1669 words)

	Fluoride: It's pollution, stupid!
		Of the four silicon tetrahalides (also know as tetrahalosilanes), only three, the fluoride, chloride and bromide, are of commercial significance, with silicon tetrachloride being of greate st importance.
		While uranium and radium found in fluorosilicic acid are known carcinogens, two decay rate products of uranium are even more dangerous and carcinogenic: Radon-222 and Polonium-210.
		During the acidulation process that creates phosphoric acid, radon (a gas) contained in the phosphate pebble can be released in greater proportions than other decay rate products (radionuclides) and carried over into the fluorosilicic acid.
	www.npwa.freeserve.co.uk /pollution.htm (4187 words)

	Module 1 June 1996 (Site not responding. Last check: 2007-11-06)
		(ii) the equation for the thermal decomposition of radium carbonate;
		(c) Give the formula and name of the metal-containing ion formed when iron(II) chloride is dissolved in water.
		(ii) Give an equation for this reaction and state the type of reaction occurring.
	www.wbateman.demon.co.uk /examqs/md1jn96qs/mod196.htm (461 words)

	Chemistry : Periodic Table : radium : compounds information
		For each compound, a formal oxidation number for radium is given, but the usefulness of this number is limited for p-block elements in particular.
		Based upon that oxidation number, an electronic configuration is also given but note that for more exotic compounds you should view this as a guide only.
		In compounds of radium (where known), the most common oxidation numbers of radium are: 2.
	www.webelements.com /webelements/elements/text/Ra/comp.html (207 words)

	An Alchemists Glossary of Terms, Definitions, Formulas & Concoctions - Part 3 (S-Z)
		Sodium Chloride (NaCl) as found in or near landlocked bodies of water.
		Stannic Chloride, discovered by Libavius in 1605, through distilling tin with corrosive sublimate.
		Oils that have little or no taste or odor but are relatively "oily"; i.e., are viscous, adherent, and lubricating.
	www.3rd1000.com /alchemy/alchemyterms3.htm (3345 words)

	Manganese Chloride - Resources from the U.S. Government (Site not responding. Last check: 2007-11-06)
		EPA - Air Toxics Website - Manganese Compounds:...(1); Manganese chloride is used as a catalyst in the chlorination of organic compounds,
		Research: Boron, chloride, cobalt, fluoride, manganese, and nickel were often present in leachates
		Madagascar has long been known as home to unique and diverse species of wildlife.
	drugs.mongabay.com /resources/Manganese_Chloride.html (844 words)

	Semester Review
		a) sodium b) carbon c) radium d) silicon e) xenon
		b) potassium chlorate decomposes to form potassium chloride and oxygen
		a) lead (II) nitrate reacts with sodium chloride (lead (II) chloride is a precipitate)
	home.earthlink.net /~ssbeaton/reviews/semrev.html (467 words)

	radium
		Visitor's Guide - Radium Hot Springs, British Columbia, Canada - Home of the...
		Mass Media & Environmental Conflict -- Radium Girls
		Radium reactor: CD and DVD mastering, recording and label
	www.fact-library.com /radium.html (1003 words)

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