What does the word radium mean?
Radium. A radioactive element of the alkaline earth series of metals. It has the atomic symbol Ra, atomic number 88, and atomic weight 226. Radium is the product of the disintegration of uranium and is present in pitchblende and all ores containing uranium. It is used clinically as a source of beta and gamma- rays in radiotherapy, particularly BRACHYTHERAPY.
Usage examples for radium
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