
	Where results make sense

Topic: Thulium

Related Topics

Yttrium

Erbium

Ytterbium

Gadolinium

Terbium

Europium

Ytterbium

Thallium

Neodymium

Chemical series

Tellurium

Dysprosium

Holmium

Periodic table (standard)

Rare earth element

	Thulium Summary
		Thulium is a rare earth element, one of the elements found in row 6 of the periodic table.
		Thulium is one of the elements discovered in yttria, a mineral first found by a Swedish army officer named Carl Axel Arrhenius (1757-1824) in 1787 near the town of Ytterby, Sweden.
		Thulium is a chemical element that has the symbol Tm and atomic number 69 in the periodic table.
	www.bookrags.com /Thulium (2069 words)

	[No title] (Site not responding. Last check: 2007-10-30)
		Thulium is a chemical element, in the periodic table that has the symbol Tm and atomic number 69.
		A lanthanide element, thulium is the least abundant of the rare earths and its metal is easy to work, has a bright silvery-gray luster and can be cut by a knife.
		Thulium was discovered by Swedish chemist Per Teodor Cleve in 1879 by looking for impurities in the oxides of other rare earth elements (this was the same method Carl Gustaf Mosander earlier used to discover some other rare earths elements).
	www.online-encyclopedia.info /encyclopedia/t/th/thulium.html (573 words)

	VIAS Encyclopedia: Thulium
		Thulium was discovered by Swedish chemist Per Teodor Cleve in 1879 by looking for impurities in the oxides of other rare earth elements.
		Thulium is the least abundant of the rare earth elements, but with new sources recently discovered, it is now considered to be about as rare as silver, gold, or cadmium.
		Thulium can be isolated by reduction of the oxide with lanthanum metal or by calcium reduction of a closed container.
	www.vias.org /encyclopedia/persys_tm.html (302 words)

	thulium on Encyclopedia.com
		It is one of the rare-earth metals of the lanthanide series in group IIIb of the periodic table.
		Thulium is the least abundant of the rare-earth metals.
		Thulium was discovered in 1879 by P. Cleve.
	www.encyclopedia.com /html/t1/thulium.asp (363 words)

	Tm - Thulium
		Thulium occursin small quantities along with other rare earths in a number of minerals.
		Thulium is theleast abundant of the rare earth elements, but with new sources recently discovered, it isnow considered to be about as rare as silver, gold, or cadmium.
		Thulium can be isolated byreduction of the oxide with lanthanum metal or by calcium reduction of a closed container.The element is silver-gray, soft, malleable, and ductile, and can be cut with a knife.Twenty five isotopes are known, with atomic masses ranging from 152 to 176.
	www.physlink.com /Reference/ChemicalElements/thulium.cfm (202 words)

	Thulium (Tm) (Site not responding. Last check: 2007-10-30)
		Thulium is a silver-gray, soft, malleable and ductile element that can be cut with a knife.
		Thulium was discovered in 1879 by Per Teodor Cleve (a Swedish chemist).
		Because thulium is relatively costly, it has not yet found many practical applications.
	www.bayerus.com /msms/fun/pages/periodic/thulium (122 words)

	CRCPress Periodic Table Online: Cadmium
		Thulium occurs in small quantities along with other rare earths in a number of minerals.
		Thulium is the least abundant of the rare earth elements, but with new sources recently discovered, it is now considered to be about as rare as silver, gold, or cadmium.
		Thulium can be isolated by reduction of the oxide with lanthanum metal or by calcium reduction of the anhydrous fluoride.
	www.chemnetbase.com /periodic_table/elements/thulium.htm (250 words)

	Thulium (Tm) - Chemical properties, Health and Environmental effects
		Thulium is a lanthanide element, it has a bright silvery-gray luster and can be cut by a knife.
		Soluble thulium salts are regarded as slightly toxic in taken in large amounts, but the soluble salts are completely not toxic.
		Thulium poses no enviromental threat to plants and animals.
	www.lenntech.com /Periodic-chart-elements/Tm-en.htm (322 words)

	F. Davies Hyper-Text Untitled Document
		Thulium is the least abundant of the rare-earth elements, but with new sources recently discovered, it is now considered to be about as rare as silver, gold, or cad- mium.
		Thulium metal, only a few years ago, was not obtainable at any cost; in 1950 the oxide sold for $450/gm.
		Thulium metal now costs from $3 to $20/grit depending on the purity, quantity, and supplier.
	pte.8k.com /EL069.html (778 words)

	Thulium (Site not responding. Last check: 2007-10-30)
		Thulium occurs in small quantities along with other rare earths in a number of minerals.
		Only a few years ago, thulium metal was not obtainable at any cost; in 1985 the oxide sold for $3400/kg.
		Natural thulium, which is 100% 169Tm, is stable.
	www.scescape.net /~woods/elements/thulium.html (232 words)

	Thulium (Site not responding. Last check: 2007-10-30)
		In fact, the melting temperature of thulium is so high that it is hard to conduct experiments that call for the thulium to be in liquid form.
		Any container for molten thulium is affected by the high temperature and ends up adding impurities to the thulium.
		Thulium is especially used to power portable x-ray machines because it eliminates the need for electrical equipment.
	www.mvschools.org /ms/projects/html/black/thulium.htm (269 words)

	ThuliumInformation By Way of Stanfordmaterials.com
		Thulium related phrases on Stanfordmaterials.com include sphere neodymium magnets, ti-86 periodic table, table of second ionization of periodic elements, neodymium magnets e-bay, and glass art supplies cerium oxide.
		Thulium related terms on Stanfordmaterials.com are table of second ionization of periodic elements, neodymium magnets e-bay, sphere neodymium magnets, glass art supplies cerium oxide, and ti-86 periodic table.
		Find thulium on Stanfordmaterials.com with the terms sphere neodymium magnets, table of second ionization of periodic elements, neodymium magnets e-bay, glass art supplies cerium oxide, and ti-86 periodic table.
	www.stanfordmaterials.com /thulium_v.html (344 words)

	Thulium - Periodic Table of the Elements
		Thulium was discovered by Per Theodore Cleve (Sweden) in 1879.
		Thulium is found with other rare earths in the minerals gadolinite, euxenite, xenotime and monazite.
		Radioactive thulium is used to power portable x-ray machines, eliminating the need for electrical equipment.
	www.ktf-split.hr /periodni/en/tm.html (86 words)

	Thulium (Site not responding. Last check: 2007-10-30)
		Thulium is named for Thule, the earliest name for Scandinavia and was discovered in 1879.
		Thulium is found along with the other rare-earth minerals principally in monazite and bastnasite.
		Thulium, like the other rare-earth metals, has a bright silver luster and is malleable and ductile.
	www.muhlenberg.edu /depts/chemistry/pertable/thuinfo.htm (73 words)

	pitch.com \| \| Interviews \| Precious Metal \| 2001-10-25
		Thulium, the silver-gray metallic element, was discovered in 1879 by Swedish chemist Per Teodor Cleve.
		In the great power-pop tradition, Thulium's hook-filled gems are mostly about girls, and guys should have no problem relating to the trials and tribulations of Scofield's life, as chronicled in song.
		When Thulium plays pop-rock, it puts on an entertaining, crowd-friendly show, contrary to hipster opinions that detachment is a desirable quality and that anything popular to assembled masses is without merit.
	www.pitch.com /issues/2001-10-25/interview2.html (1157 words)

	Thulium (Site not responding. Last check: 2007-10-30)
		Thulium was discovered by 1879 by a Swedish chemist professor Theodore Cleve, Theodore called it Thule, it is a ancient name of Scandinavia.
		Thulium is found mainly found in.007 Monazite sand in Scandinavia, Thulium is separated from the other rare earth elements by the ion-exchange process.
		Thulium is used as a source of gamma rays in portable x-rays.
	lakeview.esu7.org /science/tm.htm (96 words)

	Periodic Table : Scholar edition: thulium : Biological information
		Thulium has no biological role but is said to stimulate the metabolism.
		Thulium compounds are encountered rarely by most people.
		All thulium compounds should be regarded as highly toxic although initial evidence would appear to suggest the danger is limited.
	www.webelements.com /webelements/scholar/elements/thulium/biological.html (279 words)

	Thulium: Occurrence (Site not responding. Last check: 2007-10-30)
		Thulium is the less abundant of the rare-earths (excluding promethium).
		The most important sources of thulium are the minerals rich yttrium: xenotime, gadolinite, euxenite, samarskite, fergusonite, blomstrandine, loparite and yttroparisite.
		Euxenite is also an important thulium source due to its role in the uranium, thorium and yttrium extraction.
	nautilus.fis.uc.pt /st2.5/scenes-e/elem/e06920.html (221 words)

	Thulium (Site not responding. Last check: 2007-10-30)
		Thulium, Tm, is a metallic element, which is found in the lanthanum series of inner transition metals in Group IIIa of the periodic table.
		Thulium is the least abundant rare Earth element.
		Thulium is used in ferrites in microwave equipment.
	www.ucc.ie /ucc/depts/chem/dolchem/html/elem069.html (40 words)

	thulium (Site not responding. Last check: 2007-10-30)
		Thulium- (Thule, the earliest name for Scandinavia), Tm; at.
		Only a few years ago, thulium metal was not obtainable at any cost; in 1996 the oxide cost $20/g.
		Thulium can be isolated by reduction of the oxide with lanthanum metal or by calcium reduction of the anhydrous fluoride.
	www.speclab.com /elements/thulium.htm (257 words)

	It's Elemental - The Element Thulium
		Thulium was discovered by Per Theodor Cleve, a Swedish chemist, in 1879.
		Holmia is the oxide of the element holmium and thulia is the oxide of the element thulium.
		Thulium is the least abundant of the naturally occurring rare earth elements.
	education.jlab.org /itselemental/ele069.html (187 words)

	Thulium Element) (Site not responding. Last check: 2007-10-30)
		Thulium is the least abundant of the earth elements, but with new sources recently discovered, it is now considered to be about as rare as silver, gold, or cadmium.
		Because of the high cost of Thulium there has hardly been any practical applications for the element.
		Natural thulium also has possible use in ferrites used in microwave equipment.
	www.tamuk.edu /chemistry/WebElements/thulium_element.htm (104 words)

Try your search on: Qwika (all wikis)