1. Selenium Selenium 34 Se 78.96

2. Properties And Uses Uses Uses  used in photocopying for reproducing and copying documents, letters, etc.  used by the glass industry to decolorize glass and to make ruby colored glasses and enamels  additive for stainless steel  TV cameras Properties Properties  Atomic Number 34  Atomic Number 34  Atomic Weight 78.96  melting point: 490.2 K  boiling point: 958 K  color: black  toxicity: yes

3. Facts About Selenium  Discovered : by J.J. Berkelium in 1817  Isolated in Stockholm, Sweden  The name is derived from the Greek serene, meaning moon

4. Basic Info Symbol SE AtomicNumber34 Atomic Weight 78.96 Uses Decolorize glass TV Cameras Addictive for stainless steel Properties Melting point 490.2 K Selenium Color: Black Toxic: Yes History means moon

5. Sources  http://www.webelements.com/webelements/ scholar/elements/periodictable/uses.html http://www.webelements.com/webelements/ scholar/elements/periodictable/uses.html http://www.webelements.com/webelements/ scholar/elements/periodictable/uses.html  http://chemistry.allinfoabout.com/periodic/pe riodictable.html http://chemistry.allinfoabout.com/periodic/pe riodictable.html http://chemistry.allinfoabout.com/periodic/pe riodictable.html  http://www.chemicool.com http://www.chemicool.com  http://www.chemicalelements.com/index.htm l http://www.chemicalelements.com/index.htm l http://www.chemicalelements.com/index.htm l