Periodic Table of Elements

02/05/09

Ce

Cerium

Atomic Number

58

Atomic Symbol

Ce

Name

Cerium

	Meaning	Named for the asteroid Ceres which was named for the Roman goddess of agriculture
	Group	Rare earth

Atomic Weight

140.116

Density, g/cubic cm at STP

6.770

Melting Point, °C

798

Boiling Point, °C, 1 atm

3426

Naturally Occurring Isotopes

Ce-136, -138, -140, -142

Discoverer

Berzelius and Hisinger; Klaproth

Year

1803

Ionization Energy, eV

5.5387

Configuration

[Xe] 4f 5d 6s2

Description

Silvery-white metal

References: Holden, Norman E. (March 30, 2004). "History of the origin of the chemical elements and their discoverers." National Nuclear Data Center. Retrieved October 7, 2005 from http://www.nndc.bnl.gov/content/elements.html "List of elements by boiling point." (September 22, 2005). Wikipedia. Retrieved October 9, 2005 from http://en.wikipedia.org/wiki/List_of_elements_by_boiling_point "List of elements by density." (September 22, 2005). Wikipedia. Retrieved October 9, 2005 from http://en.wikipedia.org/wiki/List_of_elements_by_density "List of elements by melting point." (September 22, 2005). Wikipedia. Retrieved October 9, 2005 from http://en.wikipedia.org/wiki/List_of_elements_by_melting_point "NIST chemistry webBook." (2005). National Institute of Standards and Technology. Retrieved October 6, 2005 from http://webbook.nist.gov/chemistry/ Zucker, M.A.; Kishore, A. R.; Sukumar, R.; and Dragoset, R. A. (July 2005). "Elemental data index."  National Institute of Standards and Technology. Retrieved October 7, 2005 from http://physics.nist.gov/PhysRefData/Elements/cover.html