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Topic: Lanthanide series

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Actinide series

Periodic table block

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	ScienceDaily: Lanthanide (Site not responding. Last check: 2007-11-03)
		The lanthanide series comprises the 15 elements from lanthanum to lutetium on the periodic table, with atomic numbers 57 through 71.
		Lanthanide -- The lanthanide series comprises the 15 elements from lanthanum to lutetium on the periodic table, with atomic numbers 57 through 71.
		Actinide -- The actinide series encompasses the 15 chemical elements that lie between actinium and lawrencium on the periodic table with atomic numbers 89 - 103.
	www.sciencedaily.com /encyclopedia/Lanthanide (1318 words)

	Composite dental cement composition containing a lanthanide series compound - Patent 5204398
		a lanthanide series compound which is not modified selected from the group consisting of an oxide and a carbonate in an amount between about 1 and 20 weight percent and being a powder having a particle size of between about 5 and 10 microns.
		a lanthanide series compound which is not modified selected from the group consisting of an oxide and a carbonate in an amount between about 1 and 20 weight percent based on the combined amount of catalyst, base and lanthanide compound and being a powder having a particle size of between about 5 and 10 microns.
		A lanthanide series compound is added to the inventive composite dental cement composition in order to interact with the polymer matrix (to push out air voids or to form a copolymerlike composition) for increasing compressive strength of the resulting composition, and for increasing wear of the overall inventive composition.
	www.freepatentsonline.com /5204398.html (8477 words)

	lanthanide series. The Columbia Encyclopedia, Sixth Edition. 2001-05
		Members of the series are often called lanthanides, although lanthanum (atomic number 57) is not always considered a member of the series.
		The series always includes the 14 elements with atomic numbers 58 through 71, which are (in order of increasing atomic number) cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, and lutetium.
		The lanthanides have similiar sizes so that any given compound of the rare earths is likely to crystallize with the same structure as any other rare earth; however, the lattice parameters become smaller and the crystal denser as compounds proceed across the series.
	www.bartleby.com /65/la/lanthani.html (227 words)

	United States Patent Application: 0040175949
		The method of claim 5, wherein the dopant is a lanthanide series dopant selected from the group consisting of yttrium, lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, and combinations thereof.
		The lanthanide metal can be any element selected from the lanthanide series including elements selected from the group consisting of yttrium, lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, and combinations thereof.
		When the dopant is a lanthanide element, the dopant typically is selected from the group consisting of yttrium, lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, and combinations thereof.
	appft1.uspto.gov /netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&u=/netahtml/PTO/search-adv.html&r=1&f=G&l=50&d=PG01&p=1&S1=20040175949&OS=20040175949&RS=20040175949 (3907 words)

	Properties of the Lanthanides - Element Chemistry
		The lanthanides are a subset of rare earth metals, located in block 5d of the periodic table.
		The lanthanides are not as rare as was once thought; even the scarce rare earths (e.g., europium, lutetium) are more common than the platinum-group metals.
		Several of the lanthanides may be formed during the fission of uranium and plutonium.
	chemistry.allinfoabout.com /features/lanthanides.html (264 words)

	Chem4Kids.com: Glossary: L
		Lanthanum is one of the elements in the lanthanide series of inner transition elements.
		Lawrencium is one of the elements in the actinide series of inner transition elements.
		Lutetium is one of the elements in the lanthanide series of inner transition elements.
	www.chem4kids.com /glossary/l.html (412 words)

	Chemical Elements.com - Rare Earth Elements
		The thirty rare earth elements are composed of the lanthanide and actinide series.
		One element of the lanthanide series and most of the elements in the actinide series are called trans-uranium, which means synthetic or man-made.
		All of the rare earth metals are found in group 3 of the periodic table, and the 6th and 7th periods.
	www.chemicalelements.com /groups/rareearth.html (82 words)

	AllRefer.com - actinide series, Compound & Element (Compounds And Elements) - Encyclopedia
		actinide series, a series of radioactive metallic elements in group IIIb of the periodic table.
		It is known, however, that all members of the series resemble actinium and each other in their chemical properties and that they have a strong chemical resemblance to their homologs in the lanthanide series.
		Elements with atomic numbers greater than 103 are not members of the actinide series; element 104 (rutherfordium) is the first of the transactinide elements.
	reference.allrefer.com /encyclopedia/A/actinide.html (386 words)

	Lanthanide Complexes Computational Chemistry
		Sparkle/AM1 and Sparkle/PM3 are computational chemistry models which exploit the lanthanide series characteristics to accurately predict geometries of the coordination polyhedra of complexes of ions of the rare earth metals.
		Due to the lanthanide series properties, knowledge of these geometries is essential for ligand field theory applications to complexes of lanthanides, especially for luminescence research.
		Sparkle/AM1 is present in the fortran 90 version of MOPAC 7 by openmopac.net for the trivalent lanthanide series ions.
	www.sparkle.pro.br (418 words)

	Rare Earth
		Rare Earth Elements, series of chemical elements of the periodic table.
		Lanthanide Series, series of 14 metallic elements of the periodic table commonly defined as the elements cerium (atomic no. 58) through lutetium (atomic no. 71).
		Yttrium (atomic no. 39) and lanthanum (atomic no. 57) are often included in the lanthanide series.
	www.candldevelopment.com /rare_earth_overview.htm (368 words)

	Condensed Matter Books - Physics and Astronomy - Buy from Buy Science Books.org
		There is no doubt that in the next breakthrough to a higher level of human understanding of nature, the rare earth elements and their compounds will pla...
		In the filling of the 4f electronic orbitals the lanthanides defy the elementary aufbau principle that underlies the p...
		It comprises five chapters on the comparative physics and thermodynamics of the lanthanide and actinide...
	www.buysciencebooks.org /condensed-matter.asp (2106 words)

	Re: Which is the 1st Lanthanide--Lanthanum or Cerium?
		Then Lanthanum was put into the transition block and the 14 Lanthanides are now seemingly considered to be Cerium through Lawrencium.
		Some show La in the body of the chart in with the Transition metals (and Ce as the 1st Lanthanide) and others show La as the first member of the Lanthanide series with Lu in with the Transitions.
		The key point is that all the "lanthanide elements" belong in the slot below yttrium (and all the "actinide elements" in the next slot down, between radium and rutherfordium) by virtue of their chemical properties, which are largely governed by their more-or-less d
	www.madsci.org /posts/archives/feb99/918537764.Ch.r.html (457 words)

	Mechanism and Specificity of Lanthanide Series Cation Transport by Ionophores A23187, 4-BrA23187, and Ionomycin -- Wang ...
		Lanthanide series trivalent cations (Ln) are bound (Puskin et al., 1975
		Spectroscopic characterization of lanthanide (III) ion binding to lasalocid A and A23187.
		Lanthanides are transported by ionophore A23187 and mimic calcium in the histamine release process.
	www.biophysj.org /cgi/content/full/75/3/1244 (5531 words)

	An analysis of the action of cations of the lanthanide series on the mechanical responses of guinea-pig ileal ... (Site not responding. Last check: 2007-11-03)
		An analysis of the action of cations of the lanthanide series on the mechanical responses of guinea-pig ileal longitudinal muscle
		series, with the exception of cerium, were found to be more effective than
		thirteenth member of the series was the most effective cation.
	jp.physoc.org /cgi/content/abstract/254/1/39 (264 words)

	Lanthanides Series Homeopathic Remedies
		Helios and the Lanthanide Series as Homoeopathic Remedies
		His lectures and seminars have produced a surge of demand for these "rare earth" elements and their compounds, and Helios has endeavoured to keep in stride with this new development.
		Even then extra precautions must be taken in the preparation of many of the Lanthanides as some are highly sensitive and react with air and even moisture in the air upon opening the original container.
	www.helios.co.uk /Lanthanides.html (440 words)

	Calcium binding proteins: optical stopped-flow and proton nuclear magnetic resonance studies of the binding of the ... (Site not responding. Last check: 2007-11-03)
		Calcium binding proteins: optical stopped-flow and proton nuclear magnetic resonance studies of the binding of the lanthanide series of metal ions to parvalbumin.
		Calcium binding proteins: optical stopped-flow and proton nuclear magnetic resonance studies of the binding of the lanthanide series of metal ions to parvalbumin.The KD for one site appears to remain constant across the lanthanide series, determined to be 4.8 X 10(-11) M for both La3+ and Lu3+.
		We conclude from these observations that reports of nearly indistinguishable CD/EF binding site affinities for parvalbumin complexes of the middle-weight lanthanides (i.e., Eu3+, Gd3+, and Tb3+) are quite reasonable in view of the crossover in relative CD/EF site affinities across the lanthanide series.
	www.pdg.cnb.uam.es /UniPub/iHOP/gp/4463906.html (205 words)

	Chem4Kids.com: Elements & Periodic Table: Lanthanide Series
		One of those rows is called the Lanthanide series.
		There are a bunch of names that you may hear that describe these 15 elements.
		No matter what you choose everyone will know what you mean if you say Lanthanide.
	www.chem4kids.com /files/elem_lanthanide.html (159 words)

	Chem4Kids.com: Elements & Periodic Table: Actinide Series
		The Lanthanide series can be found naturally on Earth.
		Only one element in the series is radioactive.
		It's doubtful your teachers will ever ask you to remember all of the elements in the series, just remember actinium.
	www.chem4kids.com /files/elem_actinide.html (167 words)

	The Columbia Encyclopedia, Sixth Edition: lanthanide series @ HighBeam Research (Site not responding. Last check: 2007-11-03)
		The Columbia Encyclopedia, Sixth Edition: lanthanide series @ HighBeam Research
		LANTHANIDE SERIES [lanthanide series] a series of metallic elements, included in the rare-earth metals, in group IIIb of the periodic table.
		Our archive contains millions of documents from thousands of sources and goes back over 23 years.
	www.highbeam.com /library/doc0.asp?DOCID=1E1:lanthani&refid=ip_encyclopedia_hf (237 words)

	Definition of vioxx,vagina,symptom,menstrual cycle,lanthanide series,ureter,tertiary structure,locomotion,child,rectum
		Definition of vioxx, vagina, symptom, menstrual cycle, lanthanide series, ureter, tertiary structure, locomotion, child, rectum
		In the periodic table the lanthanide series have partly filled f sublevels.
		Description of vioxx, vagina, symptom, menstrual cycle, lanthanide series, ureter, tertiary structure, locomotion, child, rectum
	www.english-test.net /mcat/vocabulary/words/109/mcat-definitions.php (1216 words)

	Glossary of Terms
		The mathematical equation that relates kinetic energy to mass and velocity is
		The Lanthanide series of inner transition elements includes cerium, atomic number=58 through lutetium, atomic number=71.
		Properties of the elements are periodic functions of atomic number.
	nobel.scas.bcit.ca /resource/glossary/i-m.htm (933 words)

	Pre-weekend Weekend Lunch Invite 57. So marks the start of the Lanthanide Series
		Despite an ordinary snow storm which closes schools in an upstate New York town, utilities and phones continue to work because RGandE and Frontier are nowhere to be found.
		Perceived motion ensues when a series of still images are projected in rapid succession.
		The apparently moving flickers of light hint at a story that the town's single snowplow is hi-jacked by a group of students to keep schools closed until the National Guard is called in to restore order.
	www.jayceland.com /LunchNStuff/Archives/2000210.html (1194 words)

	US PATENT SUBCLASS 502 / 302-- .~.~ Of lanthanide series (i.e., atomic number 57 to 71 inclusive) (Site not responding. Last check: 2007-11-03)
		.~.~ Of lanthanide series (i.e., atomic number 57 to 71 inclusive)
		Of lanthanide series (i.e., atomic number 57 to 71 inclusive):
		The metals Lanthanum and Actinium are not included in Group III for purposes of this class (502) but are considered with the lanthanides and actinides respectively.
	www.patentec.com /data/class/defs/502/302.html (127 words)

	lanthanide series (Site not responding. Last check: 2007-11-03)
		Related content from HighBeam Research on: lanthanide series
		Thermophysical Properly Modifications in Functional Polymers via Lanthanide Trichloride Hydrates.(Statistical Data Included) (Polymer Engineering and Science)
		The dreams of scientists: for the first in a new run of our "Minds for Science" series, we brought together two scientists from very different fields and asked them to talk about their work and the general environment for scientists in Japan today.
	www.infoplease.com /ce6/sci/A0828840.html (285 words)

	US PATENT SUBCLASS 524 / 403-- .~.~.~.~.~ At least one element of the lanthanide series (atomic ... (Site not responding. Last check: 2007-11-03)
		.~.~.~.~.~ At least one element of the lanthanide series (atomic no.57-71) or contains a noble metal atom (i.e., Au, Ag, Hg, Pt, Pd, Ir, Rh, Ru, Os)DNRM
		At least one element of the lanthanide series (atomic no.
		(under subclass 401) Subject matter wherein the inorganic designated nonreactant material contains at least one lanthanide atom (at, no. 57-71) or at least noble metal atom (Au, Ag, Hg, Pt, Pd, Ir, Rh, Ru, Os).
	www.patentec.com /data/class/defs/524/403.html (248 words)

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