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Topic: Alkaline earth

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Period 2 element

Period 1 element

Metal

Period 4 element

Alkali metal

Period 3 element

Period 7 element

Period 6 element

Period 5 element

Periodic table series

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Transition metal

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Group 6 element

	Alkaline earth metal - Wikipedia, the free encyclopedia
		The alkaline earth metals are the series of elements in Group 2 (IUPAC style) of the periodic table: beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba) and radium (Ra) (not always considered due to its radioactivity and very short half-life).
		These were named alkaline earths because of their intermediate nature between the alkalis (oxides of the alkali metals) and the rare earths (oxides of rare earth metals).
		The alkaline earth metals are silvery colored, soft, low-density metals, which react readily with halogens to form ionic salts, and with water, though not as rapidly as the alkali metals, to form strongly alkaline (basic) hydroxides.
	en.wikipedia.org /wiki/Alkaline_earth_metal (487 words)

	Encyclopedia: Alkaline earth metal
		Earth, also known as the Earth, Terra, and (mostly in the 19th century) Tellus, is the third-closest planet to the Sun.
		Primordial elements are chemical elements found on the earth that have existed in their current form since before the earth was formed, according to the big bang theory.
		Alkaline earth metals State at standard temperature and pressure those numbered in red are gases those numbered in green are liquids those numbered in fl are solid Natural occurrence those without borders have not been discovered/synthesized yet those with dotted borders do not occur naturally (Synthetic elements) those with dashed borders naturally...
	www.nationmaster.com /encyclopedia/Alkaline-earth-metal (3619 words)

	Alkaline Earth Metals
		The alkaline earth metals are located in the Group IIA of the periodic table.
		Alkaline earth metals have large atomic radii in their respective periods, out sized only by the alkali earth metals because they have the second least amount of protons to pull on their electrons in their period.
		Alkaline earth metals are found in the Earth's crust, but they are usually found mixed rock structures.
	barbershop.simpletea.net /Chemistry%20Project/alkearth.html (150 words)

	Alkaline earth metal (Site not responding. Last check: 2007-10-21)
		The alkaline earth metals ' (earth metal comes from alchemy, which was used to describe metals that resisted fire -- the oxides of the alkaline earth metals are not affected by fire) are a chemical series.
		The alkaline earth metals are silvery colored, soft, low density metal s, which react readily with halogen s to form ionic salt s, and with water, though not as rapidly as the alkali metal s, to form strongly alkaline (basic) hydroxide s.
		These elements all have two electron s in their outermost shell, so the energetically preferred state of achieving a filled electron shell is to lose two electrons to form doubly charged positive ion.
	www.serebella.com /encyclopedia/article-Alkaline_earth_metal.html (445 words)

	New Page 1
		The alkaline earth family is the second most reactive group, and it's elements can't be found free in nature.
		What differentiates group II from group I (alkali metals) is the term "earth." "Earth" was the alchemists term for the oxides of alkaline earth metals.
		All of the alkaline earth metals are found in compound form with in the earth's crust.
	www.carondelet.pvt.k12.ca.us /Family/Science/AEM/families33.htm (288 words)

	Alkaline earth metal (Site not responding. Last check: 2007-10-21)
		The alkaline earth metals are named after oxides the alkaline earths whose old-fashioned names were beryllia magnesia lime strontia and baryta.
		Later he that the alkaline earths might be metal but admitted that this was mere conjecture.
		The alkaline earth metals are silvery colored low density metals which react readily with halogens to form ionic salts and with water though not as rapidly as the alkali metals to form strongly alkaline (basic) hydroxides.
	www.freeglossary.com /Alkaline_Earth_metals (434 words)

	United States Patent Application: 0040097096
		The process of claim 1, wherein the epitaxial oxide layer is selected from one of alkaline earth metal titanates, alkaline earth metal zirconates, alkaline earth metal hafnates, alkaline earth metal tantalates, alkaline earth metal ruthenates, alkaline earth metal niobates, alkaline earth metal vanadates, and alkaline earth metal tin-based perovskites.
		The initial ratio of the alkaline earth metal A to the metal B is greater than 1 (40).
		To grow metal oxides that do not comprise an alkaline earth metal, it may be desirable to expose the substrate to an alkaline earth metal source during formation of the metal oxide to facilitate oxidation of the metal.
	appft1.uspto.gov /netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=/netahtml/PTO/srchnum.html&r=1&f=G&l=50&s1="20040097096".PGNR.&OS=DN/20040097096&RS=DN/20040097096 (6618 words)

	Inorganic thin film electroluminescent device having an emission layer - US Patent 5543237 (Site not responding. Last check: 2007-10-21)
		With alkaline earth metals, a large proportion of the light emission depends on the transition of an energy corresponding to the band gap of the matrix.
		The rare earth elements may be used as it is in the form of a metal, or may be in the form of compounds of the rare earth element and at least one element selected from fluorine, chloride, bromine, iodine and oxygen.
		The emission layer is formed by press sintering light-emitting components consisting of an alkaline earth metal fluoride and a rare earth element or its compound to obtain a pellet or by press molding the light-emitting components to which a co-activator, e.g.
	www.patentstorm.us /patents/5543237.html (2986 words)

	Alkaline earth - Wikipedia, the free encyclopedia
		If you are familiar with the subject matter, please expand the article, citing sources.
		An alkaline earth is an oxide of an alkaline earth metal, viz., lime, magnesia, strontia, and baryta.
		The alkaline earth metals are among the most electropositive of all metals, second only to the Group 1 or Alkali metals.
	en.wikipedia.org /wiki/Alkaline_earth (138 words)

	Alkaline earth metal - Encyclopedia.WorldSearch (Site not responding. Last check: 2007-10-21)
		These elements all have two electrons in their outermost shell, so the energetically preferred state of achieving a filled electron shell is to lose two electrons to form doubly charged positive ion.
		Thermodynamic properties of the alkaline earth metal hydroxides (MOH) (SuDoc C 13.46:1243)
		Identification of Alkaline Earth and Alkali Metal Ions : Separate from Chemistry in the Laboratory 5e
	encyclopedia.worldsearch.com /alkaline_earth_metal.htm (448 words)

	Visual Elements: Group 2 - The Alkaline Earth Metals
		The alkaline earth metals are high in the reactivity series of metals, but not as high as the alkali metals of Group 1.
		The oxides of alkaline earth metals have the general formula MO and are basic.
		It is sparingly soluble in water and the resulting mildly alkaline solution is known as lime water which is used to test for the acidic gas carbon dioxide.
	www.chemsoc.org /viselements/pages/data/intro_groupii_data.html (764 words)

	alkaline earth metal -- Britannica Student Encyclopedia
		The family of chemical elements called the alkaline earth metals consists of beryllium, magnesium, calcium, strontium, barium, and radium.
		The alkali metals and alkaline earth metals form three different types of binary oxygen compounds: (1) oxides, containing oxide ions, O2, (2) peroxides, containing peroxide ions, O22, which contain oxygen-oxygen covalent single bonds, and (3) superoxides, containing superoxide ions, O2, which also have oxygen-oxygen covalent bonds but with one less negative charge than...
		The designation of earth for these elements comes from the Middle Ages when alchemists referred to many substances that were insoluble in water and unchanged by...
	www.britannica.com /ebi/article-9272810?tocId=9272810 (858 words)

	Cold Alkaline-Earth Atoms Workshop
		Alkaline earth systems, provide extremely narrow optical transitions in the visible domain which appear interesting for many applications, e.g.
		Little is known about the short range molecular potentials for the other alkaline earth diatomics, and we simplify these systems by introducing one effective SC crossing.
		Alkaline earth atoms such as Mg, Ca and Sr have reasonably simple quasimolecule structures, which is expected to make it possible to test the prevailing trap loss theories against experimental data.
	itamp.harvard.edu /alkaline-earthatoms.html (2656 words)

	World Intellectual Property Organization (Site not responding. Last check: 2007-10-21)
		The present invention also provides a process which is characterised in that one or more various alkaline earth salt (s) of D-pantothenic acid is/are added in the desired amount to the constituents of the fermentation broth and mixture containing one or more of the alkaline earth salts of D-pantothenic acid.
		adding during the fermentation a solution or suspension of an alkaline earth-containing inorganic compound, such as for example calcium hydroxide, magnesium hydroxide, in particular calcium hydroxide, or magnesium oxide, or also the alkaline earth salt of an organic acid, for example calcium acetate, calcium fumarate or calcium aspartate, continuously to the fermentation.
		Process according to claim 1, characterised in that the commencement of the addition of the alkaline earth compound begins when the concentration of D- pantothenic acid is 0.
	www.wipo.int /ipdl/IPDL-CIMAGES/view/pct/getbykey5?KEY=01/83799.011108&ELEMENT_SET=DECL (4204 words)

	Alkaline Earth Metals
		Alkaline Earth Metals are softer than most other metals, and react readily with water (especially when heated) but not as much as the corresponding alkali metals.
		The element is a high-melting, silver-white metal which is the first member of the alkaline earth metals.
		It is the fifth most abundant element in the earth's crust and is widely distributed as limestone (remember earth metal!).
	www.borntoexplore.org /chemistry/alkaline_earth_metals.htm (1289 words)

	Alkaline Earth Metals
		Limestone and dolomite, common rocks all over the Earth (hint, hint - "alkaline EARTH metals"), are composed of calcium and magnesium carbonates.
		alchemy, which was used to describe metals that resisted fire -- the oxides of the alkaline earth metals are not affected by fire.
		These compounds are used as antacids because they are alkaline (high pH), hence calcium and magnesium are known as alkaline earth metals.
	borntoexplore.org /chemistry/alkaline_earth_metals.htm (1289 words)

	Alkaline earth metal : Group 2 - Wikipedia, the free encyclopedia
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	www.wikipedia.org /wiki/Alkaline_earth_metal_:_Group_2 (50 words)

	Chemical Elements.com - Rare Earth Elements
		The thirty rare earth elements are composed of the lanthanide and actinide series.
		All of the rare earth metals are found in group 3 of the periodic table, and the 6th and 7th periods.
		The Rare Earth Elements are made up of two series of elements, the Lanthanide and Actinide Series.
	www.chemicalelements.com /groups/rareearth.html (82 words)

	Alkaline Earth Metal Encyclopedia Article, Definition, History, Biography (Site not responding. Last check: 2007-10-21)
		Looking For alkaline earth metal - Find alkaline earth metal and more at Lycos Search.
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	www.quiltplace.com /search/encyclopedia/Alkaline_earth_metal (662 words)

	Alkali metal alkaline earth metal sulfate phosphor activated with cerium and terbium and lamp containing same - Patent ...
		Mixed rare earth alkali and alkaline earth sulfates activated with cerium and terbium are used as a phosphor coating system for fluorescent lamps.
		In an article by Blasse and Pietersen, entitled "Luminescence of Vanadium and Rare Earth Ions in Alkaline Earth Sulfates", appearing in Journal of Solid State Chemistry 11, 148-149 (1974), there is mention of a CaSO.sub.4 phosphor co-activated with vanadium and various rare earth ions, including terbium.
		The present invention is directed to a phosphor that is generally characterized as an alkali metal, alkaline earth metal sulfate phosphor activated with cerium and terbium.
	www.freepatentsonline.com /4007394.html (1538 words)

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