Periodic Table of Elements

02/05/09

Sc

Scandium

Atomic Number

21

Atomic Symbol

Sc

	Name	Scandium
	Meaning	Named for Scandinavia

Group

Transition metals

Atomic Weight

44.95591

Density, g/cubic cm at STP

2.989

Melting Point, °C

1539

Boiling Point, °C, 1 atm

2831

Naturally occurring isotopes

Sc-45

Discoverer

Nilson

Year

1879

Ionization Energy, eV

6.5615

Configuration

[Ar] 3d 4s2

Description

Silvery-white

An alloy of aluminum and scandium is used to make 'aluminum' baseball bats.  Because pure scandium is very expensive, Joseph doesn't have a sample in his collection. This photograph was taken by Wikipedia user RTC.   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