Preferred Label : actinium;
RADLEX synonyms : Ac;
Definition : Actinium. A trivalent radioactive element and the prototypical member of the actinide
family. It has the atomic symbol Ac, atomic number 89, and atomic weight 227.0278.
Its principal isotope is 227 and decays primarily by beta-emission. [MeSH];
UMLS CUI (RADLEX) : C0001246;
Origin ID : RID11938;
UMLS CUI : C0001246;
Currated CISMeF NLP mapping
- Semantic type(s)
- UMLS correspondences (same concept)
Actinium. A trivalent radioactive element and the prototypical member of the actinide
family. It has the atomic symbol Ac, atomic number 89, and atomic weight 227.0278.
Its principal isotope is 227 and decays primarily by beta-emission. [MeSH]
