Periodic Table of Elements

02/05/09

C

Carbon

Atomic Number

6

Atomic Symbol

C

	Name	Carbon
	Meaning	Name derived from Latin 'carbo' meaning 'charcoal'

Group

Non-metals

Atomic Weight

12.0107

Density, g/cubic cm at STP

2.267

Melting Point, °C

3675 (graphite)

Boiling Point, °C, 1 atm

3900 (graphite)

Naturally Occurring Isotopes

C-12, C-13, C-14

Discoverer

Prehistoric

Year

—

Ionization Energy, eV

11.2603

Configuration

1s2 2s2 2p2

Description

Graphite is lustrous gray-black; diamond is colorless crystal

Carbon is the fifteenth most abundant element in the earth's crust in the form of carbonate minerals and fossil fuels. There are three crystalline allotropes of carbon: diamond, graphite, and fullerenes. This picture shows a sheet of graphite. Joseph bought this sample from the Red, Green, and Blue Company.     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