http://www.youtube.com/watch?v=5_I6vj-lXNM
Name:Radium
Symbol:RA
Atomic Mass:209
Standard State:solid at 298
Group name:Alkaline earth metal
Period in Periodic Table:7
Color:metallic
Classification:Metallic

Radium is #88 on the periodic table of elements. The uses are paints, nuetron sources, and medical uses. It will blacken if exposed to air. It does that from nitrade. when mixed with beryllium.