pitchblende was the first, but any good uranium ore will do as it is a daughter element of uranium's decay.
Pitchblende
Radium is a natural chemical element, an alkali earth metal; but some isotopes of radium can be obtained artificially.
This compound was not obtained and studied; the chemical formula will be RaS (radium sulphide).
Uranium dudes
Radium has not its own minerals; radium exist in extremely low concentrations in uranium and thorium ores.
Along with thorium, radium is found in uranium ore (pitchblende) as a decay product of uranium. It was first isolated in 1898 by Marie Curie, Pierre Curie, and Gustave Bemont, in Paris France. Smaller amounts have been extracted from the mineral carnotite (potassium uranium vanadate).
Uraninite
Radium is a natural chemical element, an alkali earth metal; but some isotopes of radium can be obtained artificially.
inside a clown nose
Radium is a rare element and very difficult to obtain.
This compound was not obtained and studied; the chemical formula will be RaS (radium sulphide).
Uranium dudes
Radium has not its own minerals; radium exist in extremely low concentrations in uranium and thorium ores.
Uranium Oxide- U3O8
The anagram is radium, a radioactive element.
Along with thorium, radium is found in uranium ore (pitchblende) as a decay product of uranium. It was first isolated in 1898 by Marie Curie, Pierre Curie, and Gustave Bemont, in Paris France. Smaller amounts have been extracted from the mineral carnotite (potassium uranium vanadate).
Sulphur
Nitrogen is obtained by the plants in the mineral form.