Facts about the Classification of the Element Radium
Radium is classified as an "Alkaline Earth Metals" which are located in Group 2 elements of the Periodic Table. An Element classified as an Alkaline Earth Metals are found in the Earth’s crust, but not in the elemental form as they are so reactive. Instead, they are widely distributed in rock structures.

Brief Facts about the Discovery and History of the Element Radium
Radium was discovered by Marie Curie and her husband Pierre Curie in 1898 in pitchblende which was found in Joachimsthal, North Bohemia. The Curies removed uranium from the pitchblend and found that the remaining material was still radioactive. Radium was isolated into its pure metal by Marie and Pierre Curie and Andre Debierne in 1902. Handling of radium has since been blamed for Marie Curie's premature death.

Occurrence of the element Radium
Obtained from uranium ores
Found in USA, Canada, New Mexico, Australia and Africa

Common Uses of Radium
Treating cancer
Luminescent paints

The Properties of the Element Radium
Name of Element : Radium
Symbol of Element : Ra
Atomic Number of Radium : 88
Atomic Mass: 226.0 amu
Melting Point: 700.0 °C - 973.15 °K
Boiling Point: 1737.0 °C - 2010.15 °K
Number of Protons/Electrons in Radium : 88
Number of Neutrons in Radium : 138
Crystal Structure: Cubic
Density @ 293 K: 5.0 g/cm3
Color of Radium : brilliant white