Radium is located on the seventh period and the second group in the periodic table of elements. Its appearance is silvery white with a melting point of 700 degrees Celsius. Radium is a reactive and radioactive member of the alkaline earth metals rapidly forming oxides in air. It can form up to 2 bonds. Its half life is about 1600 years. It was identified in 1898 and isolated in 1911 by Marie Curie. It is really dense, even heavier than Barium.

Radium used to be used in painting clock dials, but is now outdated. Radium doesn't have many modern day uses due to its extreme radioactivity and toxicity.