Periodic Table of Elements

03/24/07

Na

Sodium

Atomic Number

11

Atomic Symbol

Na

	Name	Sodium
	Meaning	Name comes from the Latin 'sodanum' for 'headache remedy'; symbol from Latin 'natron' meaning 'soda'

Group

Alkali earth

Atomic Weight

22.98977

Density, g/cubic cm at STP

0.971

Melting Point,°C

98

Boiling Point, °C, 1 atm

890

Naturally Occurring Isotopes

Na-23

Discoverer

Davy

Year

1807

Ionization Energy, eV

5.1391

Configuration

[Ne] 3s

Description

Lustrous white

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