About site: Chemistry/Elements/Cerium - It's Elemental: Cerium
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Title: Chemistry/Elements/Cerium - It's Elemental: Cerium Basic physical and historical information.
LANL__Cerium Sources, properties, and uses.

Lenntech__Cerium Physical data, chemical properties, health and environmental effects.

Visual_Elements__Cerium Image, animation, uses, general and physical information, and key isotopes.

WebElements__Cerium Extensive information on history, uses, occurrence, compounds, and properties.

Wikipedia__Cerium Properties of the element, including its history, applications, and characteristics.

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It's Elemental - The Element CeriumPrivacy and Security NoticeJefferson LabJefferson Lab HomeSearchContact JLabScience Education----------------------Science Education HomeTeacher ResourcesStudent ZoneGames and PuzzlesPrograms and EventsSearch EducationIt's ElementalPrevious ElementPrevious ElementTable of ElementsNext ElementNext Element 58CeCerium140.116CeriumAtomic Number:58Atomic Weight:140.116Melting Point:1071 K (798°C or 1468°F)Boiling Point:3697 K (3424°C or 6195°F)Density:6.770 grams per cubic centimeterPhase at Room Temperature:SolidElement Classification:MetalPeriod Number:6Group Number:noneGroup Name:LanthanideWhat's in a name?Named for the asteroid Ceres.Say what?Cerium is pronounced as SER-i-em.History and Uses:Cerium was discovered by Jöns Jacob Berzelius and Wilhelm von Hisinger, Swedish chemists, and independently by Martin Heinrich Klaproth, a German chemist, in 1803. Cerium is the most abundant of the rare earth elements and makes up about 0.0046% of the earth's crust. Today, cerium is primarily obtained through an ion exchange process from monazite sand ((Ce, La, Th, Nd, Y)PO4), a material rich in rare earth elements.Pure cerium will ignite if it is scratched with a sharp object, but can be safely used if combined with other materials. Cerium is one of the rare earth elements used to make carbon arc lights which are used in the motion picture industry for studio lighting and projector lights. Cerium is also a component of Misch metal, a material that is used to make flints for lighters. Cerium is also used as a catalyst to refine petroleum and as an alloying agent to make special metals.Cerium oxide (Ce2O3 and CeO2) is a component of the walls of self cleaning ovens and of incandescent lantern mantles. Cerium oxide is also used to polish glass surfaces. Ceric sulfate (Ce(So4)2) is used in some chemical analysis processes. Other cerium compounds are used to make some types of glass as well as to remove color from glass.Estimated Crustal Abundance:6.65×101 milligrams per kilogramEstimated Oceanic Abundance:1.2×10-6 milligrams per literNumber of Stable Isotopes:2(View all isotope data)Ionization Energy:5.539 eVOxidation States:+4, +3Electron Shell Configuration:1s22s22p63s23p63d104s24p64d104f15s25p65d16s2This page is maintained by Steve Gagnon.Citation and linking information
 

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It's Elemental: Cerium 2008 November

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