Radium can be found underground, (naturally) and they are inactive. However, they will become active under 2 conditions - if the pH of soil is low, and when there is a presence of nitrogen compounds.
So the area that receives a lot of acid deposition and people have gardens / cropland, where they apply fertilizers containing Nitrogen, then they will have problems with active radium.
Radium is a radio active element which always undergoes nuclear fission and desentegration, and releases energy in the form of radiation. It is an element. There is no compound in it. It contains atoms of radium.
Radium is a chemical element, not a compound.
Radium is an element; it has no sub-parts. Radium is a radioactive element, so it will slowly and spontaneously decay into other elements.
The ist group elements Alkali metals are most active elements.
Radium is a chemical element, not a mixture.
Dust of the radioactive element Radium.
Radium is a non metal radiop active element. Atomic mass of it is 12.
Radium is in the alkaline earth metals.
Radium is an element itself. It was isolated by Marie Curie from Pitchblende, an ore of Uranium.
The valence of radium is 2+.
Radium is an element, atomic number 88.
Radium is not used to produce energy.