bn:00006920n
Noun Concept
Categories: Alkaline earth metals, Science and technology in Poland, Articles with short description, Radium, Marie Curie
EN
radium  Ra  atomic number 88  88Ra  Eka-barium
English:
Ra
Definitions
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Sources
EN
Radium is a chemical element; it has symbol Ra and atomic number 88. Wikipedia
Chemical element with symbol Ra and atomic number 88. Wikipedia Disambiguation
Chemical element with the atomic number of 88 Wikidata
Chemical element with symbol Ra and atomic number 88, silvery white alkaline earth metal. OmegaWiki
The chemical element (symbol Ra) with an atomic number of 88. It is a soft, shiny and silvery radioactive alkaline earth metal. Wiktionary
Chemical element with an atomic number of 88. Wiktionary (translation)
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