Element
radium
ra·di·um [ rey-dee-uhm ]
Definitions related to radium:
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A radioactive element of the alkaline earth series of metals. It has the atomic symbol Ra and atomic number 88. 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.NLM Medical Subject HeadingsU.S. National Library of Medicine, 2021
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An element with atomic symbol Ra, atomic number of 88, and atomic weight 226.0NCI ThesaurusU.S. National Cancer Institute, 2021
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