Radioactivity

Radioactivity is the act of emitting radiation spontaneously. This is done by an atomic nucleus that, for some reason, is unstable; it "wants" to give up some energy in order to shift to a more stable configuration.

http://tis.eh.doe.gov/ohre/roadmap/achre/intro_9_2.html

What Is Radioactivity?

http://www.accessexcellence.org/AE/AEC/CC/radioactivity.html

The Discovery Of Radioactivity: The Dawn of the Nuclear Age

http://hyperphysics.phy-astr.gsu.edu/hbase/nuclear/radact.html

http://www.amap.no/assess/soaer8.htm

http://www.sasked.gov.sk.ca/docs/physics/u8b3phy.html

Half Life and Radioactive Decay

http://physics.nist.gov/Divisions/Div846/Gp4/gp4.html

Radioactivity Group

http://energy.usgs.gov/factsheets/Radioactivity/radioact.html

Natural Radioactivity in the Environment

http://www.physics.isu.edu/radinf/natural.htm

Radioactivity in Nature

http://www.aip.org/history/curie/

http://curie.che.virginia.edu/scientist/curie.html

Marie Curie (1867-1934)

 

http://www.physics.isu.edu/radinf/cover.htm

Radiation and Radioactivity

http://www.gcse.com/radio/rad.htm

http://dbhs.wvusd.k12.ca.us/Radioactivity/Radioactivity.html

http://dbhs.wvusd.k12.ca.us/Radioactivity/Disc-of-Radioactivity.html

http://www.chemie.de/tools/units.php3?language=e&property=radioactivity

Radioactivity Unit Conversion

http://web.ccr.jussieu.fr/radioactivite/english/accueil.htm

CENTENNIAL of the DISCOVERY of RADIOACTIVITY